Update firewall dependency

[lmickh]

Updates the 'firewall' dependency and changes the way the firewall_rule lwrp is used to match the new version.

[codecov-io]

Current coverage is 61.80%

Merging #221 into master will decrease coverage by -10.24% as of 2a4c00c

@@            master   #221   diff @@
=====================================
  Files            6      6       
  Stmts          322    322       
  Branches         0      0       
  Methods          0      0       
=====================================
- Hit            232    199    -33
  Partial          0      0       
- Missed          90    123    +33

Review entire Coverage Diff as of 2a4c00c

Powered by Codecov. Updated on successful CI builds.

[lock]

This thread has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.