[BP] Fix TestValidateTLSClientCertificatePathRequired and TestValidateBackupRestoreMissingBackupField for openshift

=== RUN TestOperator/TestNegValidationCreate/TestValidateTLSClientCertificatePathRequired
— FAIL: TestOperator/TestNegValidationCreate/TestValidateTLSClientCertificatePathRequired (4.09s)
util.go:1304: expected message: spec.networking.tls.clientCertificatePaths.path in body is required
returned message: CouchbaseCluster.couchbase.com "cluster" is invalid: spec.networking.tls.clientCertificatePaths.path: Required value

util.go:1305: goroutine 2721 [running]:
runtime/debug.Stack(0xc000ae2000, 0xc000bb5c18, 0x1)
/usr/local/go/src/runtime/debug/stack.go:24 +0x9d
github.com/couchbase/couchbase-operator/test/e2e/e2eutil.Die(0xc000ae2000, 0x2577d80, 0xc000702a60)
/Users/arunkumarsenthilnathan/go/src/github.com/couchbase/couchbase-operator/test/e2e/e2eutil/util.go:1305 +0x77
github.com/couchbase/couchbase-operator/test/e2e.runValidationTest.func2(0xc000ae2000)
/Users/arunkumarsenthilnathan/go/src/github.com/couchbase/couchbase-operator/test/e2e/validation_test.go:415 +0x4c9
testing.tRunner(0xc000ae2000, 0xc0006ed800)
/usr/local/go/src/testing/testing.go:909 +0xc9
created by testing.(*T).Run
/usr/local/go/src/testing/testing.go:960 +0x350

=== RUN TestOperator/TestNegValidationCreate/TestValidateBackupRestoreMissingBackupField
— FAIL: TestOperator/TestNegValidationCreate/TestValidateBackupRestoreMissingBackupField (4.53s)
util.go:1304: expected message: spec.backup in body is required
returned message: CouchbaseBackupRestore.couchbase.com "restore0" is invalid: spec.backup: Required value

util.go:1305: goroutine 5806 [running]:
runtime/debug.Stack(0xc000b54300, 0xc000dc5c18, 0x1)
/usr/local/go/src/runtime/debug/stack.go:24 +0x9d
github.com/couchbase/couchbase-operator/test/e2e/e2eutil.Die(0xc000b54300, 0x2577d80, 0xc0005c84f0)
/Users/arunkumarsenthilnathan/go/src/github.com/couchbase/couchbase-operator/test/e2e/e2eutil/util.go:1305 +0x77
github.com/couchbase/couchbase-operator/test/e2e.runValidationTest.func2(0xc000b54300)
/Users/arunkumarsenthilnathan/go/src/github.com/couchbase/couchbase-operator/test/e2e/validation_test.go:415 +0x4c9
testing.tRunner(0xc000b54300, 0xc00032fb30)
/usr/local/go/src/testing/testing.go:909 +0xc9
created by testing.(*T).Run
/usr/local/go/src/testing/testing.go:960 +0x350