This update for chromium fixes the following issues:

Chromium 91.0.4472.101 (boo#1187141)

* CVE-2021-30544: Use after free in BFCache
* CVE-2021-30545: Use after free in Extensions
* CVE-2021-30546: Use after free in Autofill
* CVE-2021-30547: Out of bounds write in ANGLE
* CVE-2021-30548: Use after free in Loader
* CVE-2021-30549: Use after free in Spell check
* CVE-2021-30550: Use after free in Accessibility
* CVE-2021-30551: Type Confusion in V8
* CVE-2021-30552: Use after free in Extensions
* CVE-2021-30553: Use after free in Network service
* Various fixes from internal audits, fuzzing and other initiatives