community/py3-rsa: add missing dependency

Before this change:

    $ sudo apk add py3-rsa && pyrsa-verify --help
    (1/11) Installing libbz2 (1.0.8-r1)
    (2/11) Installing libffi (3.3-r1)
    (3/11) Installing gdbm (1.13-r1)
    (4/11) Installing xz-libs (5.2.5-r0)
    (5/11) Installing ncurses-terminfo-base (6.2_p20200404-r0)
    (6/11) Installing ncurses-libs (6.2_p20200404-r0)
    (7/11) Installing readline (8.0.4-r0)
    (8/11) Installing sqlite-libs (3.31.1-r1)
    (9/11) Installing python3 (3.8.2-r5)
    (10/11) Installing py3-asn1 (0.4.7-r2)
    (11/11) Installing py3-rsa (4.0-r0)
    Executing busybox-1.31.1-r14.trigger
    OK: 276 MiB in 68 packages
    Traceback (most recent call last):
      File "/usr/bin/pyrsa-verify", line 6, in <module>
        from pkg_resources import load_entry_point
    ModuleNotFoundError: No module named 'pkg_resources'

After this change:

    $ sudo apk add py3-rsa && pyrsa-verify --help
    (1/17) Installing libbz2 (1.0.8-r1)
    (2/17) Installing libffi (3.3-r1)
    (3/17) Installing gdbm (1.13-r1)
    (4/17) Installing xz-libs (5.2.5-r0)
    (5/17) Installing ncurses-terminfo-base (6.2_p20200404-r0)
    (6/17) Installing ncurses-libs (6.2_p20200404-r0)
    (7/17) Installing readline (8.0.4-r0)
    (8/17) Installing sqlite-libs (3.31.1-r1)
    (9/17) Installing python3 (3.8.2-r5)
    (10/17) Installing py3-asn1 (0.4.7-r2)
    (11/17) Installing py3-ordered-set (3.1.1-r0)
    (12/17) Installing py3-appdirs (1.4.3-r2)
    (13/17) Installing py3-parsing (2.4.7-r0)
    (14/17) Installing py3-six (1.14.0-r1)
    (15/17) Installing py3-packaging (20.3-r0)
    (16/17) Installing py3-setuptools (46.1.3-r0)
    (17/17) Installing py3-rsa (4.0-r1)
    Executing busybox-1.31.1-r14.trigger
    OK: 278 MiB in 74 packages
    Usage: pyrsa-verify [options] public_key signature_file

    Verifies a signature, exits with status 0 upon success, prints an error
    message and exits with status 1 upon error.

    Options:
      -h, --help            show this help message and exit
      -i INPUT, --input=INPUT
                            Name of the file to verify. Reads from stdin if not
                            specified.
      --keyform=KEYFORM     Key format of the public key - default PEM

The above commands were run inside docker-abuild with `dabuild sh`.

The change is required because `/usr/bin/pyrsa-verify` includes the line:

    from pkg_resources import load_entry_point

That means that py3-setuptools is required at runtime:

    $ python3 -c 'import pkg_resources; print(pkg_resources.__file__)'
    /usr/lib/python3.8/site-packages/pkg_resources/__init__.py
    $ apk info -q -W /usr/lib/python3.8/site-packages/pkg_resources/__init__.py
    py3-setuptools

0 files changed, 0 insertions, 0 deletions