Add predicates::resource_version

[clux]

This adds a resource_version predicate helper for things that cannot use predicates::generation like pods (which do not set the .medata.generation).

This predicate also exists upstream in https://github.com/kubernetes-sigs/controller-runtime/blob/main/pkg/predicate/predicate.go#L127

We also change the default example to use deployments, as these can make use of the predicates::generation fn by default.

[codecov]

Codecov Report

Merging #1221 (d071f85) into main (ff5b320) will decrease coverage by 0.07%.
The diff coverage is 0.00%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1221      +/-   ##
==========================================
- Coverage   73.49%   73.43%   -0.07%     
==========================================
  Files          68       68              
  Lines        5380     5390      +10     
==========================================
+ Hits         3954     3958       +4     
- Misses       1426     1432       +6     

Impacted Files	Coverage Δ
kube-client/src/api/util/mod.rs	93.50% <ø> (ø)
kube-client/src/lib.rs	93.78% <ø> (ø)
kube-runtime/src/utils/predicate.rs	84.61% <0.00%> (-3.39%)	⬇️
kube-runtime/src/utils/watch_ext.rs	0.00% <ø> (ø)
kube/src/lib.rs	89.04% <ø> (ø)

... and 7 files with indirect coverage changes