Release 0.8.0 - Githubissues

Pre-release

[x] Create a git branch named pre-release-x.x.x
[x] Ensure upgradeable_from in templates/promscale.control contains the previously released version.
[x] Update CHANGELOG.md with release version and date, ensuring that all relevant changes are reflected.
[x] Update the version in all places with ./update-version.sh <version-here>
[x] Freeze any new incremental sql scripts released in this version in incremental_freeze_test
[x] Create a PR from the pre-release-x.x.x branch. Get it approved. Merge the PR to master.

[x] Create a tag on the master branch git tag <new version>
[x] Push the tag git push origin <new version>
[x] CI will trigger and create a draft release with assets attached.
[x] Prepare extension release notes, share with team asking for feedback.
[x] Attach release notes to draft release created above.
[x] Wait for CI to generate the packages files
[x] Create a PR to update the HA image in timescaledb-docker-ha. EXAMPLE
[x] In the timescaledb-docker-ha repo, update TIMESCALE_PROMSCALE_EXTENSIONS in the Makefile to include the version just released
[x] Update the CHANGELOG entry in the timescaledb-docker-ha repo and wait for the CI to complete and request review from the Cloud team and merge it when approved.
[x] Create a new PR in the timescaledb-docker-ha repo. Stamp the version in the CHANGELOG. Merge it with master and push the correct tag to trigger CI (see instructions in the repo) EXAMPLE
[x] Publish the GitHub release on the promscale_extension repo.

[x] Create a new git branch named post-release-x.x.x
[x] Run make post-release which will generate the sql/promscale--x.x.x.sql file of the version just released and create all the upgrade path sql files.
[x] Add and commit the newly created sql files to git. They are ignored by default. e.g. git add sql/*--0.5.5.sql --force
[x] Determine the development version (determined by bumping the patch version and appending -dev)
[x] Set the version in all places necessary with ./update-version.sh <develop-version>
[x] Update upgradeable_from in templates/promscale.control to add the previously released version
[x] Update e2e/tests/config/mod.rs to refer to the new docker images
[x] Create a PR and get it merged
[ ] ~Bump the version in the promscale repo's EXTENSION_VERSION file to the version just released (Renovate should automatically create a PR for this).~ it's set to master