should uninstall bundles when corresponding extension is disabled

When an extension is disabled, the bundle it provides is still loaded, which is unnecessary and may cause some trouble.

E.g.

• Open a spring-boot project with both Java extension and Spring Boot Tools extension enabled.
• Wait until everything is ok, now disable Spring Boot Tools extension and reload.
• Now you'll see below error in server log.

!ENTRY org.springframework.tooling.jdt.ls.extension 4 0 2023-03-08 13:44:21.738
!MESSAGE org.eclipse.lsp4j.jsonrpc.ResponseErrorException: Request workspace/executeClientCommand failed with message: command 'vscode-spring-boot.ls.start' not found
!STACK 0
java.util.concurrent.CompletionException: org.eclipse.lsp4j.jsonrpc.ResponseErrorException: Request workspace/executeClientCommand failed with message: command 'vscode-spring-boot.ls.start' not found
	at java.base/java.util.concurrent.CompletableFuture.reportJoin(Unknown Source)
	at java.base/java.util.concurrent.CompletableFuture.join(Unknown Source)
	at org.eclipse.jdt.ls.core.internal.JavaClientConnection.executeClientCommand(JavaClientConnection.java:101)
	at org.springframework.tooling.jdt.ls.extension.JdtLsExtensionPlugin.lambda$2(JdtLsExtensionPlugin.java:47)
	at org.springframework.tooling.jdt.ls.commons.BootProjectTracker.fireEvent(BootProjectTracker.java:71)
	at org.springframework.tooling.jdt.ls.commons.BootProjectTracker.processProject(BootProjectTracker.java:59)
	at org.springframework.tooling.jdt.ls.commons.BootProjectTracker.<init>(BootProjectTracker.java:50)
	at org.springframework.tooling.jdt.ls.extension.JdtLsExtensionPlugin.lambda$1(JdtLsExtensionPlugin.java:57)
	at java.base/java.util.concurrent.CompletableFuture$UniAccept.tryFire(Unknown Source)
	at java.base/java.util.concurrent.CompletableFuture.postComplete(Unknown Source)
	at java.base/java.util.concurrent.CompletableFuture.complete(Unknown Source)
	at org.springframework.tooling.jdt.ls.extension.JdtLsExtensionPlugin$1.done(JdtLsExtensionPlugin.java:84)
	at org.eclipse.core.internal.jobs.JobListeners.sendEvent(JobListeners.java:153)
	at org.eclipse.core.internal.jobs.JobListeners.sendEventsAsync(JobListeners.java:140)
	at org.eclipse.core.internal.jobs.JobListeners.waitAndSendEvents(JobListeners.java:80)
	at org.eclipse.core.internal.jobs.JobManager.withWriteLock(JobManager.java:524)
	at org.eclipse.core.internal.jobs.JobManager.endJob(JobManager.java:728)
	at org.eclipse.core.internal.jobs.WorkerPool.endJob(WorkerPool.java:117)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:83)
Caused by: org.eclipse.lsp4j.jsonrpc.ResponseErrorException: Request workspace/executeClientCommand failed with message: command 'vscode-spring-boot.ls.start' not found
	at org.eclipse.lsp4j.jsonrpc.RemoteEndpoint.handleResponse(RemoteEndpoint.java:209)
	at org.eclipse.lsp4j.jsonrpc.RemoteEndpoint.consume(RemoteEndpoint.java:193)
	at org.eclipse.jdt.ls.core.internal.ParentProcessWatcher.lambda$1(ParentProcessWatcher.java:144)
	at org.eclipse.lsp4j.jsonrpc.json.StreamMessageProducer.handleMessage(StreamMessageProducer.java:194)
	at org.eclipse.lsp4j.jsonrpc.json.StreamMessageProducer.listen(StreamMessageProducer.java:94)
	at org.eclipse.lsp4j.jsonrpc.json.ConcurrentMessageProcessor.run(ConcurrentMessageProcessor.java:113)
	at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
	at java.base/java.util.concurrent.FutureTask.run(Unknown Source)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at java.base/java.lang.Thread.run(Unknown Source)