ci: Disable build setup-go, solve multiple cache conflicts.

[moonD4rk]

Proposed changes

setup-go@v4 actions enabled cache falg by default. This conflicts with actions/cache.

      - name: Set up Go ${{ matrix.goVer }}
        uses: actions/setup-go@v5
        with:
          go-version: ${{ matrix.goVer }}
          cache: false
        id: go

      - name: cache go modules
        uses: actions/cache@v4
        with:
          path: |
            ~/go/pkg/mod
            ~/.cache/go-build
          key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
          restore-keys: |
            ${{ runner.os }}-go-

Checklist

• Pull request is created against the dev branch
• All checks passed (lint, unit, build tests etc.) with my changes
• I have added tests that prove my fix is effective or that my feature works
• I have added necessary documentation (if appropriate)