Bug 1844617 - Update AFL toolchain to AFL++ stable r=firefox-build-sy…

…stem-reviewers,glandium

Differential Revision: https://phabricator.services.mozilla.com/D184755

taskcluster/ci/fetch/toolchains.yml

@@ -594,12 +594,12 @@ pkgconf:
         strip-components: 1
         add-prefix: pkgconf/
 
-afl-2.5:
-    description: AFL 2.5x source
+afl-plus-plus-4.0:
+    description: AFL++ 4.0x source
     fetch:
         type: git
-        repo: https://github.com/google/AFL
-        revision: e75894a889fe854c02b9435186bd1e2927d6d490
+        repo: https://github.com/AFLplusplus/AFLplusplus
+        revision: 497ff5ff7962ee492fef315227366d658c637ab2
 
 cargo-vet:
     description: cargo-vet source

taskcluster/ci/toolchain/misc.yml

@@ -444,10 +444,10 @@ win64-vs2022:
             - build/vs/vs2022.yaml
         toolchain-artifact: project/gecko/vs/vs.tar.zst
 
-linux64-afl-instrumentation-2.5:
-    description: "AFL instrumentation toolchain build"
+linux64-afl-instrumentation-4.0:
+    description: "AFL++ instrumentation toolchain build"
     treeherder:
-        symbol: TL(afl)
+        symbol: TL(afl++)
     worker:
         max-run-time: 3600
     run:
@@ -458,7 +458,7 @@ linux64-afl-instrumentation-2.5:
         toolchain-alias: linux64-afl-instrumentation
     fetches:
         fetch:
-            - afl-2.5
+            - afl-plus-plus-4.0
         toolchain:
             - linux64-clang
             - linux64-toolchain-sysroot