Bump xbean.version from 3.18 to 4.5

Bumps `xbean.version` from 3.18 to 4.5.

Updates `org.apache.xbean:xbean-asm5-shaded` from 3.18 to 4.5

Updates `org.apache.xbean:xbean-bundleutils` from 3.18 to 4.5

Updates `org.apache.xbean:xbean-finder` from 3.18 to 4.5

---
updated-dependencies:
- dependency-name: org.apache.xbean:xbean-asm5-shaded
  dependency-type: direct:production
  update-type: version-update:semver-major
- dependency-name: org.apache.xbean:xbean-bundleutils
  dependency-type: direct:production
  update-type: version-update:semver-major
- dependency-name: org.apache.xbean:xbean-finder
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

blueprint/itests/blueprint-itests/pom.xml

@@ -66,7 +66,7 @@
         <slf4j.version>1.7.7</slf4j.version>
         <tinybundles.version>2.0.0</tinybundles.version>
         <url.version>2.5.3</url.version>
-        <xbean.version>3.18</xbean.version>
+        <xbean.version>4.5</xbean.version>
     </properties>
 
     <dependencies>