Bump martincostello/update-dotnet-sdk from 3.3.0 to 3.4.0 (#3215)

Bumps [martincostello/update-dotnet-sdk](https://github.com/martincostello/update-dotnet-sdk) from 3.3.0 to 3.4.0.
- [Release notes](https://github.com/martincostello/update-dotnet-sdk/releases)
- [Commits](martincostello/update-dotnet-sdk@0bc908e...76e2c0d)

---
updated-dependencies:
- dependency-name: martincostello/update-dotnet-sdk
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

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

@@ -11,7 +11,7 @@ permissions:
 
 jobs:
   update-dotnet-sdk:
-    uses: martincostello/update-dotnet-sdk/.github/workflows/update-dotnet-sdk.yml@0bc908ef15be678a94bc7bf92f742bbaff67337e # v3.3.0
+    uses: martincostello/update-dotnet-sdk/.github/workflows/update-dotnet-sdk.yml@76e2c0df2303d4f6a404228105ebb7d60ace0556 # v3.4.0
     permissions:
       contents: write
       pull-requests: write