redo(ticdc): enable pprof and set memory limit for redo applier (#10904)

[ti-chi-bot]

This is an automated cherry-pick of #10904

What problem does this PR solve?

Issue Number: close #10900

What is changed and how it works?

1. Set memory limit for redo applier.
2. Enable pprof for redo applier to simplify troubleshooting.

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No code

Questions

Will it cause performance regression or break compatibility?

Do you need to update user documentation, design documentation or monitoring documentation?

Release note

Please refer to [Release Notes Language Style Guide](https://pingcap.github.io/tidb-dev-guide/contribute-to-tidb/release-notes-style-guide.html) to write a quality release note.

If you don't think this PR needs a release note then fill it with `None`.

[kennytm]

/test verify

[kennytm]

pkg/cmd/redo/apply.go:18:2: G108: Profiling endpoint is automatically exposed on /debug/pprof (gosec)
	_ "net/http/pprof" // init pprof
	^

😒

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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[kennytm]

/retest

=== FAIL: engine/servermaster TestExecutorManagerWatch (2.00s)
    executor_manager_test.go:184: 
        	Error Trace:	/home/jenkins/agent/workspace/pingcap/tiflow/release-7.1/ghpr_verify/tiflow/engine/servermaster/executor_manager_test.go:184
        	            				/usr/local/go/src/runtime/asm_amd64.s:1598
        	Error:      	Received unexpected error:
        	            	[DFLOW:ErrUnknownExecutor]unknown executor: -8cad396c
        	            	github.com/pingcap/errors.AddStack
        	            		/go/pkg/mod/github.com/pingcap/[email protected]/errors.go:174
        	            	github.com/pingcap/errors.(*Error).GenWithStackByArgs
        	            		/go/pkg/mod/github.com/pingcap/[email protected]/normalize.go:164
        	            	github.com/pingcap/tiflow/engine/servermaster.(*ExecutorManagerImpl).HandleHeartbeat
        	            		/home/jenkins/agent/workspace/pingcap/tiflow/release-7.1/ghpr_verify/tiflow/engine/servermaster/executor_manager.go:136
        	            	github.com/pingcap/tiflow/engine/servermaster.TestExecutorManagerWatch.func4.1
        	            		/home/jenkins/agent/workspace/pingcap/tiflow/release-7.1/ghpr_verify/tiflow/engine/servermaster/executor_manager_test.go:183
        	            	runtime.goexit
        	            		/usr/local/go/src/runtime/asm_amd64.s:1598
        	Test:       	TestExecutorManagerWatch
    executor_manager_test.go:228: 
        	Error Trace:	/home/jenkins/agent/workspace/pingcap/tiflow/release-7.1/ghpr_verify/tiflow/engine/servermaster/executor_manager_test.go:228
        	Error:      	Condition never satisfied
        	Test:       	TestExecutorManagerWatch

[ti-chi-bot]

@ti-chi-bot: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
jenkins-ticdc/verify	e6c0d6e	link	true	/test verify

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