Clippy --fix on runtime pedantics

[clux]

Some that have cropped up in new clippy versions.

See the recent boringssl PR's clippy output for the lints it fixes.

[codecov]

Codecov Report

Merging #1302 (1912e33) into main (83368df) will decrease coverage by 0.02%.
The diff coverage is 0.00%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1302      +/-   ##
==========================================
- Coverage   72.31%   72.30%   -0.02%     
==========================================
  Files          75       75              
  Lines        6347     6347              
==========================================
- Hits         4590     4589       -1     
- Misses       1757     1758       +1     

Files	Coverage Δ
kube-runtime/src/utils/stream_subscribe.rs	96.39% <ø> (ø)
kube-runtime/src/utils/mod.rs	62.96% <0.00%> (ø)
kube-runtime/src/watcher.rs	38.13% <0.00%> (ø)

... and 1 file with indirect coverage changes