feat: add dry-run functionality and similar dependency

- Implemented a dry-run mode for K8s resource patching, displaying diffs before applying changes.
- Added the `similar` dependency for calculating and displaying text diffs.
- Enhanced K8s resource application to handle various port specifications in NetworkPolicy ingress rules.
- Added support for port ranges and lists of ports in NetworkPolicy rules.
- Updated K8s client to utilize the dry-run configuration setting.
- Added configuration option `HARMONY_DRY_RUN` to enable or disable dry-run mode.

Cargo.lock

@@ -1576,6 +1576,7 @@ dependencies = [
  "serde-value",
  "serde_json",
  "serde_yaml",
+ "similar",
  "temp-dir",
  "temp-file",
  "tokio",
@@ -4090,6 +4091,12 @@ dependencies = [
  "rand_core 0.6.4",
 ]
 
+[[package]]
+name = "similar"
+version = "2.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bbbb5d9659141646ae647b42fe094daf6c6192d1620870b449d9557f748b2daa"
+
 [[package]]
 name = "simple_asn1"
 version = "0.6.3"