Use url.ParseRequestURI instead of url.Parse where appropriate

[pinebit]

🎯 Problem to be solved

In many places we use url.Parse which does not return an error if a given URL has no scheme prefix. We want to verify important URLs that they are well-formed URL strings including the scheme.

Original discussion

🛠️ Proposed solution

• Revisit all url.Parse instances and replace with url.ParseRequestURI where appropriate.

🧪 Tests

• Make sure all the affected tests are also updated and passed.
• Manually tested on core team/canary/test clusters
• Manually tested on local compose simnet

[pinebit]

Fixed