Fail docs on warnings (#5923)

* change (ci): docs job optimized; runs every commit; fails on warnings

* change (ci): rename jobs; temporary allow failing

* change (ci): better warnings filtering

* fix (ci): hotfix Docker release

* test (ci): run docs job with flags

* test (ci): pwd fails

* change (ci): pass just //doc dir as an artifact; debug

* change (ci): return to the previous structure; undebug

* change (ci): typo

* rebase on upstream 2

* fix the jobname

* Fix some warnings (#7079)

* Partial fix for transaction priority (#7034)

* Partial fix for priority stuff.

* Small fix

* Fix tests.

* Update frame/transaction-payment/src/lib.rs

Co-authored-by: Tomasz Drwięga <[email protected]>

* Better doc

Co-authored-by: Tomasz Drwięga <[email protected]>

* What happens if we remove wat? (#7056)

* What happens if we remove wat?

* Update Cargo.lock

* Make SlashingSpans Public (#6961)

* Make SlashingSpans Publ...