[Chapel Merge] Update a comment link to googletest code

Branch: refs/heads/main
Revision: 8997f6d
Author: riftEmber
Link: Unavailable
Log Message:

Merge pull request #20742 from riftEmber/fix-termcolor-gtest-link

Update a comment link to googletest code

The line reference was stale, so updated it to point to a specific commit hash instead of a branch name.

[trivial, not reviewed]

Modified Files:
M compiler/dyno/lib/util/terminal.cpp

Compare: https://github.com/chapel-lang/chapel/compare/9e1a7e3a980c...8997f6d4814d