fix golint

[andreasgerstmayr]

Fixes:

  /usr/bin/tar -xf /home/runner/work/_temp/ab5fc90b-99a4-43c1-8181-4d8960a26ad0/cache.tzst -P -C /home/runner/work/tempo-operator/tempo-operator --use-compress-program unzstd
  Received 223785415 of 223785415 (100.0%), 106.6 MBs/sec
  /usr/bin/tar: ../../../go/pkg/mod/google.golang.org/protobuf@v1.32.0/README.md: Cannot open: File exists
  Error: /usr/bin/tar: ../../../go/pkg/mod/google.golang.org/protobuf@v1.32.0/integration_test.go: Cannot open: File exists
  Error: /usr/bin/tar: ../../../go/pkg/mod/google.golang.org/protobuf@v1.32.0/protoadapt/convert.go: Cannot open: File exists
  /usr/bin/tar: ../../../go/pkg/mod/google.golang.org/protobuf@v1.32.0/PATENTS: Cannot open: File exists
  Error: /usr/bin/tar: ../../../go/pkg/mod/google.golang.org/protobuf@v1.32.0/encoding/bench_test.go: Cannot open: File exists
  Error: /usr/bin/tar: ../../../go/pkg/mod/google.golang.org/protobuf@v1.32.0/encoding/prototext/decode.go: Cannot open: File exists
  Error: /usr/bin/tar: ../../../go/pkg/mod/google.golang.org/protobuf@v1.32.0/encoding/prototext/other_test.go: Cannot open: File exists
  Error: /usr/bin/tar: ../../../go/pkg/mod/google.golang.org/protobuf@v1.32.0/encoding/prototext/encode.go: Cannot open: File exists
  Error: /usr/bin/tar: ../../../go/pkg/mod/google.golang.org/protobuf@v1.32.0/encoding/prototext/decode_test.go: Cannot open: File exists
  Error: /usr/bin/tar: ../../../go/pkg/mod/google.golang.org/protobuf@v1.32.0/encoding/prototext/doc.go: Cannot open: File exists
  Error: /usr/bin/tar: ../../../go/pkg/mod/google.golang.org/protobuf@v1.32.0/encoding/prototext/encode_test.go: Cannot open: File exists
  Error: /usr/bin/tar: ../../../go/pkg/mod/google.golang.org/protobuf@v1.32.0/encoding/protojson/bench_test.go: Cannot open: File exists
[...]

as seen in https://github.com/grafana/tempo-operator/actions/runs/8140953755/job/22248111854?pr=826

[andreasgerstmayr]

Ref. golangci/golangci-lint-action#677