use valid password for test code

amends jenkinsci#723 that was working as the KeyStore was not validated.

However jenkinsci/credentials-plugin#543 now
validates the keystore and hence this test started failing as the
password did not match

Author: jtnord

pipeline-model-definition/src/test/java/org/jenkinsci/plugins/pipeline/modeldefinition/steps/CredentialWrapperStepTest.java

@@ -120,7 +120,7 @@ public static void setup() throws Exception {
         folderStore.addCredentials(Domain.global(), c);
 
         File crt = new File(CredentialWrapperStepTest.class.getResource("dummy.p12").toURI());
-        CertificateCredentialsImpl certCred = new CertificateCredentialsImpl(CredentialsScope.GLOBAL, "certCred1", "sample", "test", 
+        CertificateCredentialsImpl certCred = new CertificateCredentialsImpl(CredentialsScope.GLOBAL, "certCred1", "sample", "password", 
                 new CertificateCredentialsImpl.UploadedKeyStoreSource(new FileParameterValue.FileItemImpl(crt), null));
         store.addCredentials(Domain.global(), certCred);
     }