lint: Don't use golangci cache (#201)

Currently we have ~50k lines of tar extraction errors with "File exists"
when the golangi-lint-action runs. There doesn't seem to be a clean way
around this, other than disabling its cache.

See also:
golangci/golangci-lint-action#244 (comment)

Example of the offending run:
https://github.com/neondatabase/autoscaling/actions/runs/4740610494/jobs/8416629913

.github/workflows/lint.yml

@@ -24,6 +24,9 @@ jobs:
           version: v1.52.2
           args: --timeout 5m --fix
           github-token: ${{ secrets.github_token }}
+          # caching issues, see: https://github.com/golangci/golangci-lint-action/issues/244#issuecomment-1052190775
+          skip-pkg-cache: true
+          skip-build-cache: true
 
       - name: go mod tidy
         run: |