Bump martincostello/update-dotnet-sdk/.github/workflows/update-dotnet-sdk.yml (#3112)

Bumps [martincostello/update-dotnet-sdk/.github/workflows/update-dotnet-sdk.yml](https://github.com/martincostello/update-dotnet-sdk) from 5.0.4 to 6.0.0.
- [Release notes](https://github.com/martincostello/update-dotnet-sdk/releases)
- [Commits](martincostello/update-dotnet-sdk@fb6d418...b7c93e5)

---
updated-dependencies:
- dependency-name: martincostello/update-dotnet-sdk/.github/workflows/update-dotnet-sdk.yml
  dependency-version: 6.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/update-dotnet-sdk.yml

@@ -9,7 +9,7 @@ permissions: {}
 
 jobs:
   update-dotnet-sdk:
-    uses: martincostello/update-dotnet-sdk/.github/workflows/update-dotnet-sdk.yml@fb6d4182e67895769ed694cbefe95df25fa58cd7 # v5.0.4
+    uses: martincostello/update-dotnet-sdk/.github/workflows/update-dotnet-sdk.yml@b7c93e525dbe5e9a7ff3852916c04e5b02ccf44a # v6.0.0
     permissions:
       contents: read
     with: