restrict to latest version that supports python 3.8

Author: svlandeg

requirements-tests.txt

@@ -2,7 +2,7 @@
 
 pytest >=4.4.0,<9.0.0
 coverage[toml] >=6.2,<8.0
-mypy ==1.18.1
+mypy ==1.14.1
 ruff ==0.13.0
 # Needed explicitly by fastapi-cli-slim
 fastapi-slim