Bug 1551738: Generate bz2 update mars on esr68; r=bhearsum

ESR 68.2 is going to be the watershed for bz2 updates, so generate them for the
moment.

Differential Revision: https://phabricator.services.mozilla.com/D31652

--HG--
extra : moz-landing-system : lando

taskcluster/ci/repackage-l10n/kind.yml

@@ -63,7 +63,7 @@ job-template:
                     - repackage/win64_signed.py
     package-formats:
         by-release-type:
-            esr60:
+            esr(60|68):
                 by-build-platform:
                     linux.*: [mar, mar-bz2]
                     linux4\b.*: [mar, mar-bz2]

taskcluster/ci/repackage/kind.yml

@@ -73,7 +73,7 @@ job-template:
                     - repackage/win64_signed.py
     package-formats:
         by-release-type:
-            esr60:
+            esr(60|68):
                 by-build-platform:
                     linux.*: [mar, mar-bz2]
                     linux4\b.*: [mar, mar-bz2]

taskcluster/taskgraph/manifests/firefox_candidates.yml

@@ -332,7 +332,7 @@ mapping:
         checksums_path: ${path_platform}/${locale}/Firefox Setup ${version}.msi
     target.complete.mar:
         <<: *default
-        description: "The main installer we ship our mobile products baked within"
+        description: "Complete MAR to serve as updates"
         all_locales: true
         from:
             - mar-signing
@@ -341,6 +341,18 @@ mapping:
         update_balrog_manifest: true
         destinations:
             - ${version}-candidates/build${build_number}/update/${path_platform}
+    target.bz2.complete.mar:
+        <<: *default
+        description: "Complete MAR with bz2 compression and SHA1 signing to serve as updates"
+        all_locales: true
+        from:
+            - mar-signing
+        pretty_name: firefox-${version}.bz2.complete.mar
+        checksums_path: update/${path_platform}/${locale}/firefox-${version}.bz2.complete.mar
+        update_balrog_manifest: true
+        balrog_format: bz2
+        destinations:
+            - ${version}-candidates/build${build_number}/update/${path_platform}
     ${partial}:
         <<: *default
         description: "Partials MAR files to serve as updates"