Fix compilation and Gradle deprecation warnings

- Suppress removal warning on deprecated method test in
  UserEmailServiceTest (intentionally tests deprecated 4-param
  initiateAdminPasswordReset)
- Fix Groovy space-assignment syntax for exceptionFormat in
  build.gradle (deprecated in Gradle 9, removed in Gradle 10)

Author: devondragon

build.gradle

@@ -122,10 +122,10 @@ test {
 	testLogging {
 		events "PASSED", "FAILED", "SKIPPED"
 		if (isExplicitTest) {
-			exceptionFormat "full"
+			exceptionFormat = "full"
 			showStandardStreams true
 		} else {
-			exceptionFormat "short"
+			exceptionFormat = "short"
 		}
 	}
 }
@@ -164,10 +164,10 @@ def registerJdkTestTask(name, jdkVersion) {
         testLogging {
             events "PASSED", "FAILED", "SKIPPED"
             if (isExplicitTest) {
-                exceptionFormat "full"
+                exceptionFormat = "full"
                 showStandardStreams true
             } else {
-                exceptionFormat "short"
+                exceptionFormat = "short"
             }
         }
         doFirst {

src/test/java/com/digitalsanctuary/spring/user/service/UserEmailServiceTest.java

@@ -693,7 +693,7 @@ void setUpAdmin() {
 
         @Test
         @DisplayName("deprecated method with adminIdentifier still works but ignores parameter")
-        @SuppressWarnings("deprecation")
+        @SuppressWarnings({"deprecation", "removal"})
         void deprecatedMethod_stillWorksButIgnoresAdminIdentifier() {
             // Given
             String ignoredAdminIdentifier = "ignored@example.com";