Put location as option, not all Jira server support this

[what-the-diff[bot]]

• Update version number in Cargo.toml
• Add a new dependency to the README file
• Remove location field from Board struct and make it optional instead of required

[codecov[bot]]

Codecov Report

Merging #32 (3820200) into main (ad700c6) will not change coverage. The diff coverage is n/a.

:exclamation: Current head 3820200 differs from pull request most recent head ed448e3. Consider uploading reports for the commit ed448e3 to get more accurate results

@@           Coverage Diff           @@
##             main      #32   +/-   ##
=======================================
  Coverage   14.53%   14.53%           
=======================================
  Files          19       19           
  Lines        3014     3014           
=======================================
  Hits          438      438           
  Misses       2576     2576           

Impacted Files	Coverage Δ
src/boards.rs	0.00% <ø> (ø)

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