Bump ch.qos.logback:logback-classic from 1.5.20 to 1.5.21

Bumps [ch.qos.logback:logback-classic](https://github.com/qos-ch/logback) from 1.5.20 to 1.5.21.
- [Release notes](https://github.com/qos-ch/logback/releases)
- [Commits](qos-ch/logback@v_1.5.20...v_1.5.21)

---
updated-dependencies:
- dependency-name: ch.qos.logback:logback-classic
  dependency-version: 1.5.21
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

selenium-webdriver-junit4/pom.xml

@@ -9,7 +9,7 @@
 
     <properties>
         <slf4j.version>2.0.17</slf4j.version>
-        <logback.version>1.5.20</logback.version>
+        <logback.version>1.5.21</logback.version>
 
         <selenium.version>4.38.0</selenium.version>
         <junit4.version>4.13.2</junit4.version>

selenium-webdriver-junit5-seljup/pom.xml

@@ -9,7 +9,7 @@
 
     <properties>
         <slf4j.version>2.0.17</slf4j.version>
-        <logback.version>1.5.20</logback.version>
+        <logback.version>1.5.21</logback.version>
 
         <selenium.version>4.38.0</selenium.version>
         <junit5.version>6.0.1</junit5.version>

selenium-webdriver-junit5/pom.xml

@@ -9,7 +9,7 @@
 
     <properties>
         <slf4j.version>2.0.17</slf4j.version>
-        <logback.version>1.5.20</logback.version>
+        <logback.version>1.5.21</logback.version>
 
         <selenium.version>4.38.0</selenium.version>
         <junit5.version>6.0.1</junit5.version>

selenium-webdriver-testng/pom.xml

@@ -9,7 +9,7 @@
 
     <properties>
         <slf4j.version>2.0.17</slf4j.version>
-        <logback.version>1.5.20</logback.version>
+        <logback.version>1.5.21</logback.version>
 
         <selenium.version>4.38.0</selenium.version>
         <testng.version>7.11.0</testng.version>