chore(nimbus): Update Firefox iOS (Fennec) Release (#14234)

Automated update of Firefox iOS (Fennec) Release version

Co-authored-by: Experimenter CircleCI Bot <experimenter-ci-bot@mozilla.com>

Author: experimenter-github-app[bot]

experimenter/tests/firefox_fennec_release_build.env

@@ -1,3 +1,3 @@
 FIREFOX_FENNEC_RELEASE_VERSION_ID="Firefox v146.1"
 BRANCH="dacd8c4bd43b9f1cfea462460e56f4a0445428ab"
-# Firefox version is "146.0"
+# Firefox version is "146.0.1"