tools: update ESLint to 7.15.0
Update ESLint to 7.15.0 and enable the new no-unsafe-optional-chaining
rule.
Checklist
-
make -j4 test
(UNIX), orvcbuild test
(Windows) passes -
commit message follows commit guidelines
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
Update ESLint to 7.15.0 and enable the new no-unsafe-optional-chaining
rule.
make -j4 test
(UNIX), or vcbuild test
(Windows) passes