Update RELEASE and docs to v0.49.3

[ffjlabo]

What this PR does:

as title

Why we need it:

Which issue(s) this PR fixes:

Fixes #

Does this PR introduce a user-facing change?:

• How are users affected by this change:
• Is this breaking change:
• How to migrate (if breaking change):

[github-actions[bot]]

The following 1 GitHub releases will be created once this pull request got merged.

Release v0.49.3 with changes since v0.49.2

Internal Changes

• Update RELEASE and docs to v0.49.3
• Execute git clean partially when drift detection for every app is done (#5312)
• Skip commit and push when no replacement happens in EventWatcher (#5310)
• Lambda: clone manifests not to modify original manifests (#5308)
• Add execute stage interface to deployment service api (#5309)
• Add findUpdatedWorkloads function (#5304)
• Clone manifests not to modify original manifests (#5306)
• [bot] Update contributors (#5305)
• Add tests for pipedv1 executor package (#5303)
• Make configv1.Config generic type (#5302)
• Remove Compatibilities from ecs taskdef examples (#5301)
• Delete platform-specific specs from configv1 (#5300)
• Add docs for pipectl event register --contexts on the event watcher usage page (#5299)
• Implement k8s manifest diff (#5298)
• Copy pkg/diff to pkg/plugin/diff except DiffStructureds and RenderByCommand (#5297)
• Implement TemplateLocalChart with helm (#5294)
• Bump http-proxy-middleware from 2.0.6 to 2.0.7 in /web (#5296)
• Add event context (#5295)
• Remove order for stages in case of quick sync (#5292)
• Implement LoadManifests with Kustomize template (#5291)
• fix(docs): "Edit this page" URLs to correctly point to GitHub repository structure (#5289)
• Move model.DeploymentSource to deployment.DeploymentSource (#5290)
• Add note to aware users for checking piped repositories config (#5288)
• Fix command-line-tool.md: GCR to GHCR (#5286)
• Init rfc for piped plugin arch (#5285)
• Implement LoadPlainYAMLManifests (#5284)
• Update image referenced in install piped docs (#5282)
• Update pipectl image URI in docs (#5283)
• Fix image uri for cloud run install (#5281)
• Remove Cloud Providers related docs (#5279)
• Use chan only to notify command is done (#5244)
• Separate What and Why (#5278)
• Implement find manifests in k8s plugin (#5271)
• Add application_config_filename field to DeploymentSource (#5277)
• [bot] Publish quickstart manifests (#5274)
• Cherry-pick #5266 #5268 #5269 #5272 (#5273)
• Update RELEASE to v0.49.2 and sync docs of v0.49.x (#5272)
• Enabled to configure the interval of livestate store for Lambda (#5269)
• Remove pipectl quickstart command (#5268)
• Update quickstart manifests (#5267)
• Fix the workflow publishes quickstart manifests (#5266)
• Update release docs (#5264)
• Cherry-pick #5240 #5241 #5248 #5249 #5254 #5255 #5256 #5258 #5260 #5262 #5263 (#5265)
• Update RELEASE to v0.49.1 and update v0.49.x docs (#5263)
• Update workflow not to run by matrix (#5262)
• Update quickstart README (#5261)
• Add workflow steps to build and publish quickstart manifests (#5260)
• Implement DetermineVersions of k8s plugin (#5257)
• Support directly designating a gitSSHKey instead of File for launcher (#5258)
• Revert "Copy platform provider kubernetes under the plugin directory (#5250)" (#5253)
• Remove subnet ordering in head manifest (#5254)
• Update quickstart header note (#5255)
• Update feature status (#5256)
• Copy platform provider kubernetes under the plugin directory (#5250)
• Support fetching a piped config from AWS SSM Parameter Store (#5249)
• Add test for k8s plugin's toolregistry (#5246)
• Remove an unused field 'configFilePathInGitRepo' (#5248)
• Update web development readme (#5247)
• Add test for pipedv1's buildPlan method, and remove platform specific config from configv1's GenericApplicationConfig (#5238)
• [bot] Update contributors (#5245)
• Upgrade aws-sdk-go-v2 (#5241)
• Add k8s plugin's toolregistry implementation (#5243)
• Use index from requests in buildQuickSyncPipeline (#5242)
• Add requires for stages in case of multi plugins quicksync pattern (#5239)
• Fix panic in ECS driftdetection when a taskdef in livestates does not exist (#5240)
• Copy pkg/config to pkg/configv1 (#5237)
• Mark PipelineStage.Predefined as deprecated field (#5236)
• Add PipelineStage.Rollback and mark PipelineStage.Visible as deprecated (#5232)
• [docs] Remove AWS App Mesh from feature status (#5234)
• [docs] Rearrange the core values on the top page (#5233)
• Add toolregistry client as DeploymentService member (#5228)
• Send StageIndex to plugins (#5231)
• Sort the rollbackStages to fix the flaky tests (#5230)
• Add stage_index field at BuildQuickSyncStagesRequest (#5229)
• Add test for buildQuickSyncPipeline (#5227)
• Add InstallTool RPC method for PluginService (#5218)
• Add OpenSSF best practices badge to README (#5226)
• Implement k8s plugin's FetchDefinedStages and BuildQuickSyncStages (#5223)
• Modify spec for multi cluster deployment (#5219)
• Use make release for major/minor releases (#5225)

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 25.28%. Comparing base (7475ea8) to head (c0392f5). Report is 1 commits behind head on master.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #5315 +/- ## ========================================== + Coverage 25.26% 25.28% +0.01% ========================================== Files 444 444 Lines 47554 47554 ========================================== + Hits 12016 12022 +6 + Misses 34596 34590 -6 Partials 942 942 ```

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