Build(deps): Bump org.slf4j:slf4j-api from 2.0.19 to 2.0.20 in /testing/testcontainers/java (#2091)

Build(deps): Bump org.slf4j:slf4j-api in /testing/testcontainers/java

Bumps org.slf4j:slf4j-api from 2.0.19 to 2.0.20.

---
updated-dependencies:
- dependency-name: org.slf4j:slf4j-api
  dependency-version: 2.0.20
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

testing/testcontainers/java/build.gradle

@@ -22,8 +22,8 @@ repositories {
 dependencies {
     implementation 'org.postgresql:postgresql:42.7.14'
     implementation 'io.crate:crate-jdbc:2.7.0'
-    implementation 'org.slf4j:slf4j-api:2.0.19'
-    implementation 'org.slf4j:slf4j-simple:2.0.19'
+    implementation 'org.slf4j:slf4j-api:2.0.20'
+    implementation 'org.slf4j:slf4j-simple:2.0.20'
     testImplementation 'junit:junit:4.13.2'
     testImplementation 'org.junit.jupiter:junit-jupiter:6.1.3'
     testImplementation "org.assertj:assertj-core:3.27.7"