Update stack.yaml resolver and fix cabal-testsuite stack build

[jneira]

• No ci job is checking this but i tested it locally in debian 10
• I had to add Cabal-syntax to setup-dependsin the cabal-testsuite or the build throwed the error:

cabal-testsuite> /home/debian/cabal/cabal-testsuite/Setup.hs:4:1: error:
cabal-testsuite>     Could not load module `Distribution.Backpack'
cabal-testsuite>     It is a member of the hidden package `Cabal-syntax-3.7.0.0'.
cabal-testsuite>     You can run `:set -package Cabal-syntax' to expose it.
cabal-testsuite>     (Note: this unloads all the modules in the current scope.)
cabal-testsuite>     It is a member of the hidden package `Cabal-3.2.1.0'.
cabal-testsuite>     You can run `:set -package Cabal' to expose it.
cabal-testsuite>     (Note: this unloads all the modules in the current scope.)
cabal-testsuite>     Use -v (or `:set -v` in ghci) to see a list of the files searched for.
cabal-testsuite>   |
cabal-testsuite> 4 | import Distribution.Backpack
cabal-testsuite>   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^

• related with Cabal should perhaps reexport all the modules from Cabal-syntax to reduce breakage #7974

[robx]

Seems reasonable.

[jneira]

@Mergifyio rebase master

[mergify]

rebase master

✅ Branch has been successfully rebased

[jneira]

@Mikolaj would be this ready to go?

[Mikolaj]

I can't pride myself on being a stack expert, but this certainly looks very useful as a test.