[Bandcamp] fix: Fix bandcamp search #13476

[absurdlylongusername]

• I carefully read the contribution guidelines and agree to them.
• I have tested the API against NewPipe.
• I agree to create a pull request for NewPipe as soon as possible to make it compatible with the changed API.

Bandcamp has introduced anti-bot checks on their search.

For some reason, passing a cookie of "Cookie: identity" bypasses this check. I presume this is because the cookie used to authenticate logged in users is identity, but for some reason it works if you do not set a value.
Setting a value for identity does not work.

See TeamNewPipe/NewPipe#13476 for more information.

Fixes: TeamNewPipe/NewPipe#13476

• Added Cookie: identity to headers for BandcampSearchExtractor.getPage
• Added NewPipe e.V. copyright header to BandcampSearchExtractor

[TobiGr]

Thanks! You need to update the mocks because the request das changed

[sonarqubecloud]

Quality Gate passed

Issues
1 New issue
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[absurdlylongusername]

@TobiGr Done