allow TLS secrets to be of type Opaque

[skriss]

Closes #3180.

Signed-off-by: Steve Kriss krisss@vmware.com

[codecov]

Codecov Report

Merging #4799 (54adb2d) into main (ec00824) will decrease coverage by 0.04%.
The diff coverage is 89.65%.

❗ Current head 54adb2d differs from pull request most recent head e008ac5. Consider uploading reports for the commit e008ac5 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4799      +/-   ##
==========================================
- Coverage   76.16%   76.11%   -0.05%     
==========================================
  Files         140      140              
  Lines       16914    16887      -27     
==========================================
- Hits        12882    12854      -28     
- Misses       3780     3783       +3     
+ Partials      252      250       -2     

Impacted Files	Coverage Δ
internal/dag/dag.go	96.62% <ø> (ø)
internal/dag/cache.go	92.39% <85.00%> (+0.90%)	⬆️
internal/dag/secret.go	74.00% <92.10%> (-0.40%)	⬇️
internal/dag/extension_processor.go	95.79% <100.00%> (ø)
internal/dag/gatewayapi_processor.go	94.72% <100.00%> (ø)
internal/dag/httpproxy_processor.go	93.14% <100.00%> (-0.07%)	⬇️
internal/dag/ingress_processor.go	97.07% <100.00%> (ø)
internal/protobuf/helpers.go	76.47% <0.00%> (-16.39%)	⬇️
internal/sorter/sorter.go	98.46% <0.00%> (-0.52%)	⬇️
internal/provisioner/controller/gateway.go	56.22% <0.00%> (-0.47%)	⬇️
... and 18 more