Bump org.checkerframework from 0.6.40 to 0.6.43 in /docs/examples/lombok

Bumps org.checkerframework from 0.6.40 to 0.6.43.

---
updated-dependencies:
- dependency-name: org.checkerframework
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

docs/examples/lombok/build.gradle

@@ -6,7 +6,7 @@ plugins {
     id 'java'
     id 'io.freefair.lombok' version '8.7.1'
     // Checker Framework pluggable type-checking
-    id 'org.checkerframework' version '0.6.40'
+    id 'org.checkerframework' version '0.6.43'
 }
 
 lombok {