Run spotless formatting (#958)

When we updated spotless's Java and Kotlin formatter, we changed the underlying
formatting rules.
However, due to spotless ratcheting, these formatting changes don't get applied unless a file
gets touched in a commit.

To avoid future PRs introducing lines of change that aren't related to the intention of the PR,
this is a one-time format of all files.

pkl-commons-test/pkl-commons-test.gradle.kts

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2024 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2024-2025 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -107,7 +107,7 @@ val generateKeys by
         "-storepass",
         "password",
         "-dname",
-        "CN=localhost"
+        "CN=localhost",
       )
     workingDir(keystoreDir)
     doFirst {
@@ -134,7 +134,7 @@ val exportCerts by
         keystoreName,
         "-rfc",
         "-file",
-        certsFileName
+        certsFileName,
       )
     workingDir(keystoreDir)
     doFirst {