CI: Update clang-tidy linter exclusion filter

Don't show an error on unknown NOLINT lines (presuming that someone is using a
newer version, etc.), nor formatting issues (which are handled outside the
linter). Clean up clazy checks to remove non-pod-static check, and to do the
Qt6 checks on main (instead of master)

.clang-tidy

@@ -2,7 +2,10 @@
 Checks:          'clang-diagnostic-*,clang-analyzer-*,boost-*,bugprone-*,
 performance-*,readability-*,portability-*,modernize-*,cppcoreguidelines-*,google-explicit-constructor,
 concurrency-*,-modernize-use-trailing-return-type, -modernize-use-nodiscard,
--readability-redundant-access-specifiers,-readability-qualified-auto'
+-readability-redundant-access-specifiers,-readability-qualified-auto,
+-cppcoreguidelines-avoid-non-const-global-variables,-cppcoreguidelines-owning-memory,
+-readability-convert-member-functions-to-static,-bugprone-easily-swappable-parameters,
+-cppcoreguidelines-pro-type-static-cast-downcast'
 WarningsAsErrors: ''
 HeaderFilterRegex: ''
 AnalyzeTemporaryDtors: false