update text upper-bound

[adueck]

This package conflicts with base 4.20.0.0, used by ghci 9.10.1. It seems that increasing the upper bound of text would solve this.

Using cabal 3.10.3.0 and ghci 9.10.1:

Error: cabal: Could not resolve dependencies:
[__0] trying: haskell-mailer-0.1.0.0 (user goal)
[__1] trying: zenacy-html-2.1.0 (dependency of my-proj)
[__2] next goal: text (dependency of my-proj)
[__2] rejecting: text-2.1.1/installed-05f2 (conflict: zenacy-html =>
text>=1.2.2.0 && <2.1)
[__2] skipping: text-2.1.1, text-2.1 (has the same characteristics that caused
the previous version to fail: excluded by constraint '>=1.2.2.0 && <2.1' from
'zenacy-html')