[fix] Some typos in Cmd classes

[Nicklee007]

Motivation

Fix some typos

Documentation

Check the box below or label this PR directly.

Need to update docs?

• doc-not-needed
  (Please explain why)

[tisonkun]

Thank you!

[tisonkun]

/pulsarbot run-failure-checks

[codecov-commenter]

Codecov Report

Merging #19190 (e21ea45) into master (4b0dc9a) will decrease coverage by 11.63%.
The diff coverage is n/a.

@@              Coverage Diff              @@
##             master   #19190       +/-   ##
=============================================
- Coverage     48.96%   37.33%   -11.64%     
+ Complexity     7300     1994     -5306     
=============================================
  Files           424      209      -215     
  Lines         45473    14450    -31023     
  Branches       4672     1577     -3095     
=============================================
- Hits          22268     5395    -16873     
+ Misses        20698     8475    -12223     
+ Partials       2507      580     -1927     

Flag	Coverage Δ
unittests	37.33% <ø> (-11.64%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...apache/pulsar/broker/admin/v1/SchemasResource.java
...ersistentStickyKeyDispatcherMultipleConsumers.java
...ervice/persistent/MessageRedeliveryController.java
...ice/persistent/PersistentMessageExpiryMonitor.java
.../apache/pulsar/broker/admin/v2/ResourceQuotas.java
...vice/schema/AvroSchemaBasedCompatibilityCheck.java
.../org/apache/pulsar/broker/admin/v2/Namespaces.java
...ulsar/broker/stats/prometheus/metrics/Summary.java
...g/apache/pulsar/compaction/CompactedTopicImpl.java
...rg/apache/pulsar/broker/delayed/bucket/Bucket.java
... and 623 more

[Nicklee007]

/pulsarbot run-failure-checks

[tisonkun]

Merging...