Bug 1893417 - support splitting scraped system symbols into multiple artifacts. r=gsvelto

Differential Revision: https://phabricator.services.mozilla.com/D208986

taskcluster/kinds/fetch/toolchains.yml

@@ -594,7 +594,7 @@ symbol-scrapers:
     fetch:
         type: git
         repo: https://github.com/mozilla/symbol-scrapers
-        revision: 95ea2e4c5f82469cb394620c8d332e3457466e45
+        revision: b2ebfb79ec80d7178017c88e493e77a002525884
 
 xz-5.4.4:
     description: xz 5.4.4 source code

taskcluster/kinds/system-symbols-reprocess/kind.yml

@@ -38,7 +38,7 @@ jobs:
                 DUMP_SYMS: "/bin/false"
         run:
             using: run-task
-            command: {artifact-reference: "${MOZ_FETCHES_DIR}/symbol-scrapers/reprocess.sh <system-symbols/public/build/target.crashreporter-symbols.zip>"}
+            command: {task-reference: "${MOZ_FETCHES_DIR}/symbol-scrapers/reprocess.sh <system-symbols>"}
         fetches:
             fetch:
                 - symbol-scrapers