Fix ANT pattern & tag version

[alberto-brigandi]

This commit:

• Switch the tags & branches selector from regex to ANT style patterns since jenkins doesn't support the former in declarative pipelines
• Extracts the project version with a maven command and use it as docker image tag

[codecov-io]

Codecov Report

Merging #306 into releases/2-1-stable will not change coverage. The diff coverage is n/a.

@@                  Coverage Diff                   @@
##             releases/2-1-stable     #306   +/-   ##
======================================================
  Coverage                  62.89%   62.89%           
  Complexity                   844      844           
======================================================
  Files                        165      165           
  Lines                       4910     4910           
  Branches                     296      296           
======================================================
  Hits                        3088     3088           
  Misses                      1724     1724           
  Partials                      98       98

Flag	Coverage Δ	Complexity Δ
#integration	8.94% <ø> (ø)	156 <ø> (ø)	:arrow_down:
#unittests	58.53% <ø> (ø)	771 <ø> (ø)	:arrow_down:

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