Don't require head.hackage for GHC 9.10 by default

[RyanGlScott]

Currently, generating a CI job for GHC 9.10 will cause it to use head.hackage by default:

          if [ $((HCNUMVER >= 91000)) -ne 0 ] ; then echo "HEADHACKAGE=true" >> "$GITHUB_ENV" ; else echo "HEADHACKAGE=false" >> "$GITHUB_ENV" ; fi

This is a consequence of this code:

haskell-ci/src/HaskellCI/HeadHackage.hs

Lines 7 to 8 in 07deeb7

	defaultHeadHackage :: VersionRange
	defaultHeadHackage = C.orLaterVersion (C.mkVersion [9,9])

Now that GHC 9.10.1 is fully released, should this be changed so that 9.10.1 doesn't require head.hackage, just like other full GHC releases?

[phadej]

Ouch. Thanks for spotting this! I'll make a fix asap.

[RyanGlScott]

Now that GHC 9.12.1 has been released, I think we need to do something similar by defining defaultHeadHackage = C.orLaterVersion (C.mkVersion [9,13]).