Bump slf4j-api from 1.7.25 to 1.7.30

Bumps [slf4j-api](https://github.com/qos-ch/slf4j) from 1.7.25 to 1.7.30.
- [Release notes](https://github.com/qos-ch/slf4j/releases)
- [Commits](qos-ch/slf4j@v_1.7.25...v_1.7.30)

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

build.gradle

@@ -26,7 +26,7 @@ allprojects {
             api group: 'org.json', name: 'json', version: '20200518'
             api group: 'com.github.ben-manes.caffeine', name: 'caffeine', version: '2.8.0'
             api group: 'com.google.code.findbugs', name: 'jsr305', version: '3.0.2'
-            api group: 'org.slf4j', name: 'slf4j-api', version: '1.7.25'
+            api group: 'org.slf4j', name: 'slf4j-api', version: '1.7.30'
 
             artifactId = (rootProject == project? project.name : "$rootProject.name-$project.name").toLowerCase()
             moduleName = "${group}.javabotblockapi${rootProject == project? "" : ".${project.name.toLowerCase()}"}"