Fix no-tls build for databroker

[AkhilTThomas]

This PR fixes the broken build when building kuksa-databroker with --no-default-features flag.
Additionally i have also enforced that tls feature flag for kuksa and common are not used in no-default-feature mode.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 1 line in your changes missing coverage. Please review.

Project coverage is 59.56%. Comparing base (2159d18) to head (549d70e).
Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
databroker/src/grpc/server.rs	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #118      +/-   ##
==========================================
+ Coverage   59.49%   59.56%   +0.06%     
==========================================
  Files          33       33              
  Lines       16070    16071       +1     
==========================================
+ Hits         9561     9572      +11     
+ Misses       6509     6499      -10     

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[SebastianSchildt]

Looking good. I verified TLS connection is still in the default builds from CI and works.

[AkhilTThomas]

Looking good. I verified TLS connection is still in the default builds from CI and works.

It would be good if -no-default-features build is added to CI to ensure that this is caught sooner

[SebastianSchildt]

Agree, I created a seperate issue for that (PRs welcome of course :D ) to not blocking the immediate fix