chore(deps): bump spring-zeebe-starter from 1.2.7 to 1.2.8

Bumps spring-zeebe-starter from 1.2.7 to 1.2.8.

---
updated-dependencies:
- dependency-name: io.camunda:spring-zeebe-starter
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

pom.xml

@@ -17,7 +17,7 @@
 
     <properties>
         <version.zeebe>1.2.8</version.zeebe>
-        <version.zeebe.spring>1.2.7</version.zeebe.spring>
+        <version.zeebe.spring>1.2.8</version.zeebe.spring>
 
         <version.groovy>2.4.21</version.groovy>
         <version.feel>1.13.3</version.feel>