go update to 1.23

[phbnf]

go update to 1.23
golanci-lint update to 1.61.0, together with minor code changes to make it happy.

Will unblock #3732

Checklist

• I have updated the CHANGELOG.
• I have updated documentation accordingly (including the feature implementation matrix).

[phbnf]

  Error: monitoring/testonly/metrics.go:74:7: S1009: should omit nil check; len() for []string is defined as zero (gosimple)
  			if test.labelVals != nil && len(test.labelVals) >= 1 {
  			   ^
  Error: monitoring/testonly/metrics.go:154:7: S1009: should omit nil check; len() for []string is defined as zero (gosimple)
  			if test.labelVals != nil && len(test.labelVals) >= 1 {
  			   ^
  Error: monitoring/testonly/metrics.go:226:7: S1009: should omit nil check; len() for []string is defined as zero (gosimple)
  			if test.labelVals != nil && len(test.labelVals) >= 1 {
  			   ^
  Error: server/errors/errors.go:28:40: printf: non-constant format string in call to google.golang.org/grpc/status.Errorf (govet)
  		return status.Errorf(codes.NotFound, err.Error())
  		                                     ^
  Error: server/errors/errors_test.go:45:43: printf: non-constant format string in call to google.golang.org/grpc/status.Errorf (govet)
  			wantErr: status.Errorf(codes.NotFound, sql.ErrNoRows.Error()),
 			```