fix: graal error for private @Property (#8541)

* checkstyle: trailing dot for first sentence

* fix: graal error for private @Property

Whiel deploying a GraalVM native executable of a lambda function with 22.3 and MN 3.8.0 I was getting:
```
Caused by: java.lang.NoSuchFieldError: No field 'logbackXmlLocation' found for type: io.micronaut.logging.impl.LogbackLoggingSystem
at io.micronaut.core.reflect.ReflectionUtils.lambda$getRequiredField$2(ReflectionUtils.java:294)
at java.util.Optional.orElseThrow(Optional.java:408)
at io.micronaut.core.reflect.ReflectionUtils.getRequiredField(ReflectionUtils.java:294)
at io.micronaut.context.AbstractInitializableBeanDefinition.setFieldWithReflection(AbstractInitializableBeanDefinition.java:979)
io.micronaut.context.exceptions.BeanInstantiationException: Bean definition [io.micronaut.logging.impl.LogbackLoggingSystem] could not be loaded: Error instantiating bean of type  [io.micronaut.logging.impl.LogbackLoggingSystem]

Caused by: io.micronaut.context.exceptions.DependencyInjectionException: Error instantiating bean of type  [io.micronaut.logging.impl.LogbackLoggingSystem]
Message: Error setting field value: No field 'logbackXmlLocation' found for type: io.micronaut.logging.impl.LogbackLoggingSystem
Path Taken: new LogbackLoggingSystem()
at io.micronaut.context.AbstractInitializableBeanDefinition.setFieldWithReflection(AbstractInitializableBeanDefinition.java:986)
at io.micronaut.logging.impl.$LogbackLoggingSystem$Definition.injectBean(Unknown Source)
```

This PR changes LogbackLoggingSystem to use constructor injection for the property `logger.config` to avoid such an error.

runtime/src/main/java/io/micronaut/logging/impl/LogbackLoggingSystem.java

@@ -17,7 +17,6 @@
 
 import java.net.URL;
 import java.util.Objects;
-import java.util.Optional;
 
 import ch.qos.logback.classic.Level;
 import ch.qos.logback.classic.LoggerContext;
@@ -26,6 +25,7 @@
 import io.micronaut.context.annotation.Property;
 import io.micronaut.context.annotation.Requires;
 import io.micronaut.core.annotation.Internal;
+import io.micronaut.core.annotation.Nullable;
 import io.micronaut.logging.LogLevel;
 import io.micronaut.logging.LoggingSystem;
 import io.micronaut.logging.LoggingSystemException;
@@ -45,8 +45,11 @@ public final class LogbackLoggingSystem implements LoggingSystem {
 
     private static final String DEFAULT_LOGBACK_LOCATION = "logback.xml";
 
-    @Property(name = "logger.config")
-    private Optional<String> logbackXmlLocation;
+    private String logbackXmlLocation;
+
+    public LogbackLoggingSystem(@Nullable @Property(name = "logger.config") String logbackXmlLocation) {
+        this.logbackXmlLocation = logbackXmlLocation != null ? logbackXmlLocation : DEFAULT_LOGBACK_LOCATION;
+    }
 
     @Override
     public void setLogLevel(String name, LogLevel level) {
@@ -57,13 +60,12 @@ public void setLogLevel(String name, LogLevel level) {
     public void refresh() {
         LoggerContext context = getLoggerContext();
         context.reset();
-        String logbackXml = logbackXmlLocation.orElse(DEFAULT_LOGBACK_LOCATION);
-        URL resource = getClass().getClassLoader().getResource(logbackXml);
+        URL resource = getClass().getClassLoader().getResource(logbackXmlLocation);
         if (Objects.isNull(resource)) {
-            throw new LoggingSystemException("Resource " + logbackXml + " not found");
+            throw new LoggingSystemException("Resource " + logbackXmlLocation + " not found");
         }
 
-        try {            
+        try {
             new ContextInitializer(context).configureByResource(resource);
         } catch (JoranException e) {
             throw new LoggingSystemException("Error while refreshing Logback", e);

runtime/src/main/java/io/micronaut/retry/annotation/CircuitBreaker.java

@@ -97,7 +97,7 @@
     Class<? extends RetryPredicate> predicate() default DefaultRetryPredicate.class;
 
     /**
-     * If {@code true} and the circuit is opened, it throws the original exception wrapped
+     * If {@code true} and the circuit is opened, it throws the original exception wrapped.
      * in a {@link io.micronaut.retry.exception.CircuitOpenException}
      * @return Whether to wrap the original exception in a {@link io.micronaut.retry.exception.CircuitOpenException}
      */