ci(github-action): update action actions/setup-go (v6.3.0 → v6.4.0)

Author: home-infrastructure-renovate[bot]

.github/actions/app-tests/action.yaml

@@ -18,7 +18,7 @@ runs:
   using: composite
   steps:
     - name: Setup Go
-      uses: actions/setup-go@4b73464bb391d4059bd26b0524d20df3927bd417 # v6.3.0
+      uses: actions/setup-go@4a3601121dd01d1626a1e23e37211e3254c1c06c # v6.4.0
       with:
         go-version-file: go.mod