[versioning] pre-release version bump

doc/changelog.markdown

@@ -1,7 +1,7 @@
 Lombok Changelog
 ----------------
 
-### v1.18.21 "Edgy Guinea Pig"
+### v1.18.22 (October 6th, 2021)
 * PLATFORM: JDK17 support added. [Issue #2898](https://github.com/projectlombok/lombok/issues/2898).
 * FEATURE: Added the `@StandardException` feature. [Pull Request #2702](https://github.com/projectlombok/lombok/pull/2702).
 * IMPROBABLE BREAKING CHANGE: If the underlying compiler and `--release` / `--source` option is 10 or higher, lombok's `val` is now replaced by `final var`. That means compound declarations such as `val x = 10, y = 12;` now fail (lombok's old `val` implementation supported it, javac's `var` does not), but IDE support in particular is more reliable. We decided it was worth the tradeoff.

src/core/lombok/core/Version.java

@@ -30,9 +30,9 @@ public class Version {
 	// ** CAREFUL ** - this class must always compile with 0 dependencies (it must not refer to any other sources or libraries).
 	// Note: In 'X.Y.Z', if Z is odd, its a snapshot build built from the repository, so many different 0.10.3 versions can exist, for example.
 	// Official builds always end in an even number. (Since 0.10.2).
-	private static final String VERSION = "1.18.21";
-	private static final String RELEASE_NAME = "Edgy Guinea Pig";
-//	private static final String RELEASE_NAME = "Envious Ferret";
+	private static final String VERSION = "1.18.22";
+//	private static final String RELEASE_NAME = "Edgy Guinea Pig";
+	private static final String RELEASE_NAME = "Envious Ferret";
 	
 	// Named version history:
 	//   Angry Butterfly