Bug 1652089 - update dump_syms version; r=firefox-build-system-reviewers,rstewart

This change pulls in the ELF and MachO support and few other miscellaneous
things.

Differential Revision: https://phabricator.services.mozilla.com/D83151

taskcluster/ci/fetch/toolchains.yml

@@ -456,8 +456,8 @@ dump-syms:
     fetch:
         type: git
         repo: https://github.com/mozilla/dump_syms/
-        # 0.0.5
-        revision: 2603fb01a18e4e11d95b95fc08d9dacad9076f43
+        # 0.0.5 + ELF/MachO/fixes
+        revision: 756bf4b555418960564c0a7c6d5ed0b1a8329283
 
 fix-stacks:
     description: fix-stacks source code