enable full linter across the codebase (#9620)

enable linter using golangci-lint across
codebase to run a bunch of linters together,
we shall enable new linters as we fix more
things the codebase.

This PR fixes the first stage of this
cleanup.

pkg/s3select/select_test.go

@@ -996,7 +996,7 @@ func TestParquetInput(t *testing.T) {
 					offset = fi.Size() + offset
 				}
 
-				if _, err = file.Seek(offset, os.SEEK_SET); err != nil {
+				if _, err = file.Seek(offset, io.SeekStart); err != nil {
 					return nil, err
 				}