Update actions/setup-go action to v6.5.0

Author: renovate[bot]

.github/workflows/on-pull_request.yaml

@@ -77,7 +77,7 @@ jobs:
       - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8  # v6.0.1
         with:
           persist-credentials: true  # stefanzweifel/git-auto-commit-action がこの credential を使ふ
-      - uses: actions/setup-go@4dc6199c7b1a012772edbd06daecab0f50c9053c  # v6.1.0
+      - uses: actions/setup-go@924ae3a1cded613372ab5595356fb5720e22ba16  # v6.5.0
         with:
           go-version: '^1.24.0'
       - name: Generate otelcol code

.github/workflows/wf-validate-otelcol.yaml

@@ -15,7 +15,7 @@ jobs:
       - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8  # v6.0.1
         with:
           persist-credentials: false
-      - uses: actions/setup-go@4dc6199c7b1a012772edbd06daecab0f50c9053c  # v6.1.0
+      - uses: actions/setup-go@924ae3a1cded613372ab5595356fb5720e22ba16  # v6.5.0
         with:
           go-version: '^1.24.0'
       - name: Build otelcol