build(deps): bump actions/setup-go from 5.4.0 to 6.0.0

Bumps [actions/setup-go](https://github.com/actions/setup-go) from 5.4.0 to 6.0.0.
- [Release notes](https://github.com/actions/setup-go/releases)
- [Commits](actions/setup-go@v5.4.0...v6)

---
updated-dependencies:
- dependency-name: actions/setup-go
  dependency-version: 6.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -105,7 +105,7 @@ jobs:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
         with:
           persist-credentials: false
-      - uses: actions/setup-go@d35c59abb061a4a6fb18e82ac0862c26744d6ab5 # v5.5.0
+      - uses: actions/setup-go@44694675825211faa026b3c33043df3e48a5fa00 # v6.0.0
         with:
           go-version: 1.25.x
       - run: |
@@ -222,7 +222,7 @@ jobs:
         with:
           persist-credentials: false
       - name: Install Go
-        uses: actions/setup-go@d35c59abb061a4a6fb18e82ac0862c26744d6ab5 # v5.5.0
+        uses: actions/setup-go@44694675825211faa026b3c33043df3e48a5fa00 # v6.0.0
         with:
           cache: false
           go-version: 1.25.x
@@ -237,7 +237,7 @@ jobs:
         with:
           persist-credentials: false
       - name: Install Go
-        uses: actions/setup-go@d35c59abb061a4a6fb18e82ac0862c26744d6ab5 # v5.5.0
+        uses: actions/setup-go@44694675825211faa026b3c33043df3e48a5fa00 # v6.0.0
         with:
           go-version: 1.25.x
       - name: Install snmp_exporter/generator dependencies
@@ -373,7 +373,7 @@ jobs:
         uses: actions/checkout@v4
         with:
           persist-credentials: false
-      - uses: actions/setup-go@v5.4.0
+      - uses: actions/setup-go@v6.0.0
         with:
           go-version: '~1.23.0'
           cache: false # We do this ourselves below to avoid conflicts between the different jobs.