Bump python from `de94826` to `bca2bcc` in /docker (from PR #2345)
Bump python from `de94826` to `bca2bcc` in /docker (from PR #2345)

Bumps python from `de94826` to `bca2bcc`.

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>

mozilla-services/tecken,mozilla-services/tecken,mozilla-services/tecken,mozilla-services/tecken