build(deps): bump github.com/hashicorp/terraform-plugin-sdk/v2 from 2.4.4 to 2.6.0

[dependabot[bot]]

Bumps github.com/hashicorp/terraform-plugin-sdk/v2 from 2.4.4 to 2.6.0.

Changelog

Sourced from github.com/hashicorp/terraform-plugin-sdk/v2's changelog.

2.6.0 (April 21, 2021)

ENHANCEMENTS:

• Made TF_ACC_TERRAFORM_VERSION more permissive, accepting values in either vX.Y.Z or X.Y.Z formats. (#731)
• Upgraded to use terraform-plugin-go v0.3.0 (#739)

2.5.0 (March 24, 2021)

ENHANCEMENTS

• Added the ability to opt out of context timeouts in CRUD functions (#723)

Commits

• 112e216 v2.6.0 [skip ci]
• 861cea2 Update CHANGELOG.md
• 06bde0d Update to tagged v0.3.0 release.
• e42067a Upgrade terraform-plugin-go to 0.3.0 (dev)
• 893e723 Update CHANGELOG.md
• 04ddb23 Allow for "v" prefix in version strings
• 695f0c7 v2.5.0 [skip ci]
• 1e9f42c Fix lingering link to master in README.
• b560467 Rename master branch to main.
• 09044da Update SUPPORT.md
• Additional commits viewable in compare view

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[dependabot[bot]]

Superseded by #39.