[main] (deps): Bump dotnet/arcade (#61546)

Bumps [dotnet/arcade](https://github.com/dotnet/arcade) from e80f44b15b3050d868dc8fb58d0fa514ca8c7451 to 76dd1b4eb3b15881da350de93805ea6ab936364c.
- [Commits](dotnet/arcade@e80f44b...76dd1b4)

---
updated-dependencies:
- dependency-name: dotnet/arcade
  dependency-version: 76dd1b4eb3b15881da350de93805ea6ab936364c
  dependency-type: direct:production
...

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Author: dependabot[bot]

.github/workflows/backport.yml

@@ -14,7 +14,7 @@ permissions:
 
 jobs:
   backport:
-    uses: dotnet/arcade/.github/workflows/backport-base.yml@e80f44b15b3050d868dc8fb58d0fa514ca8c7451 # 2025-01-13
+    uses: dotnet/arcade/.github/workflows/backport-base.yml@76dd1b4eb3b15881da350de93805ea6ab936364c # 2025-01-13
     with:
       pr_description_template: |
         Backport of #%source_pr_number% to %target_branch%

.github/workflows/inter-branch-merge-flow.yml

@@ -10,4 +10,4 @@ permissions:
 
 jobs:
   Merge:
-    uses: dotnet/arcade/.github/workflows/backport-base.yml@e80f44b15b3050d868dc8fb58d0fa514ca8c7451 # 2024-06-24
+    uses: dotnet/arcade/.github/workflows/backport-base.yml@76dd1b4eb3b15881da350de93805ea6ab936364c # 2024-06-24