chore(actions): update actions/setup-go action to v5 (#115)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/merge-master.yaml

@@ -55,7 +55,7 @@ jobs:
     - uses: actions/checkout@v4
 
     - name: Setup Go
-      uses: actions/setup-go@v4
+      uses: actions/setup-go@v5
       with:
         go-version-file: 'go.mod'
 

.github/workflows/pull-request.yaml

@@ -32,7 +32,7 @@ jobs:
     - uses: actions/checkout@v4
 
     - name: Setup Go
-      uses: actions/setup-go@v4
+      uses: actions/setup-go@v5
       with:
         go-version-file: 'go.mod'