Bump logback.version from 1.2.3 to 1.2.6 (#6834)

* Bump logback.version from 1.2.3 to 1.2.6

Bumps `logback.version` from 1.2.3 to 1.2.6.

Updates `logback-classic` from 1.2.3 to 1.2.6

Updates `logback-core` from 1.2.3 to 1.2.6

---
updated-dependencies:
- dependency-name: ch.qos.logback:logback-classic
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: ch.qos.logback:logback-core
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

* using property with logback version

Signed-off-by: Olivier Lamy <oliver.lamy@gmail.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Olivier Lamy <oliver.lamy@gmail.com>

pom.xml

@@ -21,7 +21,7 @@
     <slf4j.version>1.7.32</slf4j.version>
     <log4j2.version>2.14.0</log4j2.version>
     <disruptor.version>3.4.2</disruptor.version>
-    <logback.version>1.2.3</logback.version>
+    <logback.version>1.2.6</logback.version>
     <jetty-test-policy.version>1.2</jetty-test-policy.version>
     <alpn.api.version>1.1.3.v20160715</alpn.api.version>
     <jsp.version>8.5.70</jsp.version>

tests/test-integration/pom.xml

@@ -144,7 +144,7 @@
     <dependency>
       <groupId>ch.qos.logback</groupId>
       <artifactId>logback-classic</artifactId>
-      <version>1.2.3</version>
+      <version>${logback.version}</version>
     </dependency>
   </dependencies>
 </project>