Update dependency test/coverage to >=7.6,<7.7 (#712)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

pyproject.toml

@@ -49,7 +49,7 @@ get-hashes = 'codemodder.scripts.get_hashes:main'
 
 [project.optional-dependencies]
 test = [
-    "coverage>=7.3,<7.6",
+    "coverage>=7.6,<7.7",
     "coverage-threshold~=0.4",
     "defusedxml==0.7.1",
     "types-defusedxml==0.7.0.20240218",