Enable "Signal implement/override deprecated methods"

Closes gh-21693

Author: philwebb

.eclipse/org.eclipse.jdt.core.prefs

@@ -25,7 +25,7 @@ org.eclipse.jdt.core.compiler.problem.comparingIdentical=warning
 org.eclipse.jdt.core.compiler.problem.deadCode=warning
 org.eclipse.jdt.core.compiler.problem.deprecation=warning
 org.eclipse.jdt.core.compiler.problem.deprecationInDeprecatedCode=disabled
-org.eclipse.jdt.core.compiler.problem.deprecationWhenOverridingDeprecatedMethod=disabled
+org.eclipse.jdt.core.compiler.problem.deprecationWhenOverridingDeprecatedMethod=enabled
 org.eclipse.jdt.core.compiler.problem.discouragedReference=warning
 org.eclipse.jdt.core.compiler.problem.emptyStatement=ignore
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error

spring-javaformat-eclipse/io.spring.javaformat.eclipse/src/io/spring/javaformat/eclipse/projectsettings/org.eclipse.jdt.core.prefs

@@ -25,7 +25,7 @@ org.eclipse.jdt.core.compiler.problem.comparingIdentical=warning
 org.eclipse.jdt.core.compiler.problem.deadCode=warning
 org.eclipse.jdt.core.compiler.problem.deprecation=warning
 org.eclipse.jdt.core.compiler.problem.deprecationInDeprecatedCode=disabled
-org.eclipse.jdt.core.compiler.problem.deprecationWhenOverridingDeprecatedMethod=disabled
+org.eclipse.jdt.core.compiler.problem.deprecationWhenOverridingDeprecatedMethod=enabled
 org.eclipse.jdt.core.compiler.problem.discouragedReference=warning
 org.eclipse.jdt.core.compiler.problem.emptyStatement=ignore
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error