Updates main requirements for May
Updates main requirements for May

* psycopg2 2.8 → 2.8.2: Fix, including concurrency fix in binary package
* Jinja2 2.10 → 2.10.1: Security fix for str.format_map
* Django 2.2 → 2.2.1: psycopg2 2.8 compat, fix regressions
* requests-mock 1.5.2 -> 1.6.0: Pickling fix, PEP8
* pytest 4.4.0 → 4.4.1: Bug fixes
* mozilla-django-oidc 1.2.1 → 1.2.2: CoC, settings overrides

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