Set version to 91.0.4.

MickeyMoz · mergify[bot] · commit 49b69a04d14a · 2021-07-20T22:28:33.000Z
diff --git a/.buildconfig.yml b/.buildconfig.yml
@@ -1,6 +1,6 @@
 # Please keep this version in sync with version.txt
 # version.txt should be the new source of truth for version numbers
-componentsVersion: 91.0.3
+componentsVersion: 91.0.4
 # Please add a treeherder group in taskcluster/ci/config.yml if you add a new project here.
 projects:
   concept-awesomebar:
