Move web-specific FailureAnalyzer to a more focused package

This commit moves PortInUseFailureAnalyzer to o.s.b.web.server as its
current location means the whole general failure analyzer package has
to know about web servers.

Closes gh-45524

spring-boot-project/spring-boot/src/main/java/org/springframework/boot/web/server/PortInUseFailureAnalyzer.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2019 the original author or authors.
+ * Copyright 2012-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -14,11 +14,10 @@
  * limitations under the License.
  */
 
-package org.springframework.boot.diagnostics.analyzer;
+package org.springframework.boot.web.server;
 
 import org.springframework.boot.diagnostics.AbstractFailureAnalyzer;
 import org.springframework.boot.diagnostics.FailureAnalysis;
-import org.springframework.boot.web.server.PortInUseException;
 
 /**
  * A {@code FailureAnalyzer} that performs analysis of failures caused by a

spring-boot-project/spring-boot/src/main/resources/META-INF/spring.factories

@@ -78,12 +78,12 @@ org.springframework.boot.diagnostics.analyzer.MutuallyExclusiveConfigurationProp
 org.springframework.boot.diagnostics.analyzer.NoSuchMethodFailureAnalyzer,\
 org.springframework.boot.diagnostics.analyzer.NoUniqueBeanDefinitionFailureAnalyzer,\
 org.springframework.boot.diagnostics.analyzer.PatternParseFailureAnalyzer,\
-org.springframework.boot.diagnostics.analyzer.PortInUseFailureAnalyzer,\
 org.springframework.boot.diagnostics.analyzer.UnboundConfigurationPropertyFailureAnalyzer,\
 org.springframework.boot.diagnostics.analyzer.ValidationExceptionFailureAnalyzer,\
 org.springframework.boot.liquibase.LiquibaseChangelogMissingFailureAnalyzer,\
 org.springframework.boot.web.context.MissingWebServerFactoryBeanFailureAnalyzer,\
-org.springframework.boot.web.embedded.tomcat.ConnectorStartFailureAnalyzer
+org.springframework.boot.web.embedded.tomcat.ConnectorStartFailureAnalyzer,\
+org.springframework.boot.web.server.PortInUseFailureAnalyzer
 
 # Failure Analysis Reporters
 org.springframework.boot.diagnostics.FailureAnalysisReporter=\