OWS Release 1.9.1

What's Changed

• CI fixes and autoupdates (#1101, #1102, #1107, #1106, #1097, #1105, #1117, #1124, #1114, #1121, #1125, #1129, #1136)
• wsgi: use 1.9 config variable name (#1110)
• Misc code cleanup and updates (#1118, #1119, #1111, #1115, #1120, #1123, #1128, #1116, #1130, #1131, #1134, #1141,
  #1142, #1143, #1144, #1145, #1146)
• Docker cleanups and improvements (#1122)
• Documentation cleanup (#1113)
• Properly close db connections in schema mgmt ops (#1133)
• Refactor styling engine to remove dependency on orphaned colour library (#1140)
• Make ping multi-db aware (#1139)
• Update HISTORY.rst and default version number ready for release (#1147)

Featuring contributions from @pjonsson and @SpacemanPaul. Thanks to supporting organisations Geoscience Australia and RISE.

Full Changelog: 1.9.0...1.9.1