Deps: Update sentry plugin to 5.8.0

Release Notes: https://github.com/getsentry/
sentry-android-gradle-plugin/releases/tag/5.8.0

FYI: This update makes this library fully 16 KB page size compatible.

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As part of this e7afdf5 change, I
forgot to also update the 'Sentry' plugin, which is actually required to
make Sentry fully 16 KB page size compatible. I noticed that when I
manually updated Gradle to 8.14.3 and AGP 8.11.1 to double check the
'Aligned16KB' rule, which still showed 'Sentry' on the list of
non-compatible libraries (AINFRA-994).

Author: ParaskP7

Simplenote/build.gradle

@@ -73,7 +73,7 @@ android {
 
 buildscript {
     dependencies {
-        classpath 'io.sentry:sentry-android-gradle-plugin:3.5.0'
+        classpath "io.sentry:sentry-android-gradle-plugin:$sentryVersion"
     }
 
     repositories {

build.gradle

@@ -65,6 +65,8 @@ def gitVersion() {
 }
 
 ext {
+    sentryVersion = '5.8.0'
+
     automatticTracksVersion = '6.0.4'
     androidxLifecycleVersion = '2.5.1'
 }