[chloggen] Fix component name in featuregate changelog entry

.chloggen/featuregate-reject-empty-id-segments.yaml declared
component: featuregate, which is not in the config.yaml component
allowlist and fails the changelog CI check. The correct entry is
pkg/featuregate, matching the actual package path.

Author: zanarellidev

.chloggen/featuregate-reject-empty-id-segments.yaml

@@ -4,7 +4,7 @@
 change_type: 'bug_fix'
 
 # The name of the component, or a single word describing the area of concern, (e.g. receiver/otlp)
-component: featuregate
+component: pkg/featuregate
 
 # A brief description of the change.  Surround your text with quotes ("") if it needs to start with a backtick (`).
 note: Reject feature gate IDs with an empty dot-separated segment (leading, trailing, or consecutive dots), e.g. `.foo`, `foo.`, `foo..bar`.