79587 Migrate fingerprint to null safety (a: null-safety, cla: yes, team, tool)

79611 Migrate android_sdk and application_package to null safety (a: null-safety, cla: yes, team, tool, waiting for tree to go green)

79618 [flutter_tools] Remove special cased –no-chain-stack-traces (cla: yes, team, tool, waiting for tree to go green)

79650 add trailing comma when argList is splitted (cla: yes, d: examples, f: cupertino, f: material design, framework, team, waiting for tree to go green)

79656 Reland 79654 (a: accessibility, a: tests, cla: yes, f: material design, framework, team, waiting for tree to go green)