Constrain core ISO7

[hlloreda]

Description

Add a constraint to Inmanta core for ISO7 through the CI-install target.

note: to add a changelog entry and bump the version number: inmanta module release --dev [--major|--minor|--patch] [--changelog-message "<your_changelog_message>"]

Merge procedure

1. merge using the merge button
2. Wait for tests to pass
3. Add the tag and push it back

git checkout master
git pull
inmanta module release
git push
git push {tag} # push the tag as well

4. Remove the branch

Self Check:

Strike through any lines that are not applicable (~~line~~) then check the box

• [ ] Attached issue to pull request
• [ ] Changelog entry
• [ ] Version number is bumped to dev version
• [ ] Code is clear and sufficiently documented
• [ ] Sufficient test cases (reproduces the bug/tests the requested feature)
• [ ] Correct, in line with design
• [ ] End user documentation is included or an issue is created for end-user documentation (add ref to issue here: )

[hlloreda]

Blocked on https://github.com/inmanta/irt/pull/2183