Add --tag arg to docker/up.sh

[wslulciuc]

This PR adds the --tag arg to docker/up.sh. This PR also adds the --help flag to print the following script usage:

$ ./docker/up.sh --help
usage: ./up.sh [--tag TAG] [--build] [--seed]

A script used to run Marquez via Docker

Examples:
  # Build image from source
  $ ./up.sh --build

  # Build image from source, then seed HTTP server with metadata
  $ ./up.sh --build --seed

  # Build tagged image
  ./up.sh --tag X.Y.X

  # Build tagged image, then seed HTTP server with metadata
  ./up.sh --tag X.Y.X --seed


Arguments:
  -t, --tag string      image tag (ex: X.Y.Z, X.Y.Z-rc.*)
  -b, --build           build image from source
  -s, --seed            seed HTTP server with metadata
  -h, --help            show help for script

[codecov]

Codecov Report

Merging #1413 (0abb886) into main (e18125e) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##               main    #1413   +/-   ##
=========================================
  Coverage     79.83%   79.83%           
  Complexity      915      915           
=========================================
  Files           197      197           
  Lines          5738     5738           
  Branches        392      392           
=========================================
  Hits           4581     4581           
  Misses          738      738           
  Partials        419      419           

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