Includes fixes for CVE-2022-31736, CVE-2022-31737, CVE-2022-31738,
CVE-2022-31739, CVE-2022-31740, CVE-2022-31741, CVE-2022-31742, and
CVE-2022-31747.
* gnu/packages/gnuzilla.scm (%icecat-version, %icecat-build-id): Update.
(icecat-source): Update gnuzilla commit, base version, and hashes.