chore(renovate): change strategy for @opentelemetry/api, run experimental update every weekday

[pichlermarc]

Which problem is this PR solving?

• use "widen" range strategy for @opentelemetry/api
  • renovate bot tries to bump api, but we want to keep it compatible with older api versions
• run experimental updates every weekday
  • we can release on any day of the week, so this way we don't need to wait for a week if renovate fails or we release on a Friday

[codecov]

Codecov Report

Merging #1578 (b2bcc21) into main (3139dbf) will not change coverage.
The diff coverage is n/a.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1578   +/-   ##
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  Coverage   96.06%   96.06%           
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  Files          14       14           
  Lines         914      914           
  Branches      199      199           
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  Hits          878      878           
  Misses         36       36