Merge pull request #8253 from paul-elliott-arm/fix_travis_coverity_build

Re-add python install of requirements to Travis CI

.travis.yml

@@ -1,9 +1,9 @@
 # Declare python as our language. This way we get our chosen Python version,
 # and pip is available. Gcc and clang are available anyway.
-distro: xenial
+dist: jammy
 os: linux
 language: python
-python: 3.5
+python: 3.10
 
 cache: ccache
 
@@ -11,6 +11,9 @@ branches:
   only:
     coverity_scan
 
+install:
+  - $PYTHON scripts/min_requirements.py
+
 env:
   global:
     - SEED=1