Notice fix for php7.4

chore: attempt to fix doc generation on tag (googleapis#2249)

fix: bad firebase call (googleapis#2245)

chore: update psr7 for CVE-2022-24775 (googleapis#2234)

fix: remove error block of code (googleapis#2163)

chore: prepare v2.12 (googleapis#2158)

chore: prepare v2.11.0 (googleapis#2132)

chore: prepare v2.10.1

chore: prepare v2.10.0 (googleapis#2090)

chore: recommend 'pre-autoload-dump' for cleanup command so it works …

…with 'optimize-autoloader' (googleapis#2063)