[3.14] Bump version numbers to 3.14

[fgaz]

#10241

https://github.com/haskell/cabal/wiki/Making-a-release#c3-bumping-version-numbers

• hackage-security release/revision (point 6 of the checklist) Bump Cabal and Cabal-syntax to allow 3.14 hackage-security#319
• Regenerate bootstrap files

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Template B: This PR does not modify behaviour or interface

E.g. the PR only touches documentation or tests, does refactorings, etc.

Include the following checklist in your PR:

• Patches conform to the coding conventions.
• Is this a PR that fixes CI? If so, it will need to be backported to older cabal release branches (ask maintainers for directions).

[Kleidukos]

haskell/hackage-security#319 has been done

[ffaf1]

Everything seems fine + thanks for having taken care of hackage-security.

While updating stuff on master, I found a minor bump for GHC 9.6 (a214625) which might be useful here too