update default version in install instructions, added code sample for manual profiling in spring-boot

Author: lbloder

docs/platforms/java/common/profiling/index.mdx

@@ -21,13 +21,13 @@ Continuous profiling is available starting in SDK version `8.23.0` for macOS and
 In addition to your typical Sentry dependencies, you will need to add `sentry-async-profiler` as a dependency:
 
 ```groovy {tabTitle:Gradle}
-implementation 'io.sentry:sentry-async-profiler:{{@inject packages.version('sentry.java.sentry-async-profiler', '8.0.0') }}'
+implementation 'io.sentry:sentry-async-profiler:{{@inject packages.version('sentry.java.sentry-async-profiler', '8.23.0') }}'
 ```
 ```xml {tabTitle:Maven}
 <dependency>
     <groupId>io.sentry</groupId>
     <artifactId>sentry-async-profiler</artifactId>
-    <version>{{@inject packages.version('sentry.java.sentry-async-profiler', '8.0.0') }}</version>
+    <version>{{@inject packages.version('sentry.java.sentry-async-profiler', '8.23.0') }}</version>
 </dependency>
 ```
 

platform-includes/profiling/automatic-instrumentation-setup/java.spring-boot.mdx

@@ -31,4 +31,31 @@ sentry.profile-lifecycle=MANUAL
 sentry:
   profile-session-sample-rate: 1.0
   profile-lifecycle: MANUAL
+```
+
+Then use the `startProfiler` and `stopProfiler` methods to start and stop profiling respectively.
+
+
+```java
+import io.sentry.Sentry;
+
+// Start profiling
+Sentry.startProfiler();
+
+// run some code here
+
+// Stop profiling
+Sentry.stopProfiler();
+```
+
+```kotlin
+import io.sentry.Sentry
+
+// Start profiling
+Sentry.startProfiler()
+
+// run some code here
+
+// Stop profiling
+Sentry.stopProfiler()
 ```