Spinnaker Release 1.37.5

Clouddriver 5.91.2

Fixes

• docker: fix retrofit2 docker client which is replacing ? with %3F causing api failure (#6354) ( fd29d63d )
• docker: fix the issue of retrofit2 replacing ? with %3F causing api failure with 400 ( fd29d63d )
• docker: address review comments on the fix to the issue of retrofit2 replacing ? with %3F causing api failure with 400 ( fd29d63d )

Other

• docker: add two test classes, one to demonstrate how real docker registry apis can be accessed using retrofit2 client and another to demonstrate the issue of retrofit2 replacing ? with %3F causing api failure with 400 ( fd29d63d )