integrate ghc-9.2.1 builds

[shayne-fletcher]

this PR gets ghc-9.2.1 builds in ci

• update stack-exact.yaml default resolver to ghc-9.2.1 and update packages/package versions
• the 9.2.1 builds do not execute the mini-hlint golden tests
  • this is a stack issue; the next upgrade will unblock re-enabling them
• ghc-lib-gen for 9.2.1
  • -fwarn-incomplete-uni-patterns seems to have become the default; disable it
  • aeson got a super major version upgrade: notes on migration here
• azure configuration updates:
  • add 9.2.1 builds and remove some older ones
  • move 9.0.1 builds off stack-exact.yaml and onto stack-901.yaml (works around a happy problem encountered when used with stack.yaml)
  • swap out some 8.10.4 builds for 8.10.7 ones