docs: revert intentional misspelling in release-notes-1.4

The release note documents a deprecation of the misspelled
util.UsageContentCommittment in favor of util.UsageContentCommitment.
The misspelling must be preserved as it refers to the actual config
option name. Add Committment to the spelling allowlist instead.

Signed-off-by: Istvan Csaba Varga <istvan.csaba.varga@accenture.com>

Author: IstvanCsVarga

.spelling

@@ -1493,3 +1493,4 @@ zapr
 zenlab
 zilore
 ztunnel
+Committment

content/docs/releases/release-notes/release-notes-1.4.md

@@ -309,7 +309,7 @@ EdgeGrid` Go package.
 
 [#3794]: https://github.com/cert-manager/cert-manager/pull/3794 "Less alarming message on optimistic locking errors"
 
-- The `util.UsageContentCommitment` (which contained a spelling mistake) was
+- The `util.UsageContentCommittment` (which contained a spelling mistake) was
   deprecated in favor of `util.UsageContentCommitment`. The only people impacted
   by this deprecation are the the people importing the Go package
   `github.com/jetstack/cert-manager/pkg/api/util`.