Merge pull request #1977 from gedoor/dependabot/gradle/epublib/androidx.annotation-annotation-1.4.0

chore(deps): bump annotation from 1.3.0 to 1.4.0 in /epublib

epublib/build.gradle

@@ -33,5 +33,5 @@ android {
 }
 
 dependencies {
-    implementation "androidx.annotation:annotation:1.3.0"
+    implementation "androidx.annotation:annotation:1.4.0"
 }