Upgrade gradle to 7.1.1

Repace jcenter with maven as jcenter is deprecated
update dependencies that are more up to date on maven

Gradle 7.1.1 working even though #14 didn't change.
Apparently incopatibility is now shifted to gradle 8, whatever.

app/build.gradle

@@ -46,8 +46,8 @@ dependencies {
     implementation 'com.squareup.picasso:picasso:2.71828'
 
     // animations and transformations
-    implementation 'jp.wasabeef:picasso-transformations:2.2.1'
-    implementation 'jp.wasabeef:recyclerview-animators:3.0.0'
+    implementation 'jp.wasabeef:picasso-transformations:2.4.0'
+    implementation 'jp.wasabeef:recyclerview-animators:4.0.2'
     // tests
     testImplementation 'junit:junit:4.12'
     androidTestImplementation 'androidx.test.ext:junit:1.1.3'

build.gradle

@@ -4,8 +4,7 @@ buildscript {
     
     repositories {
         google()
-        jcenter()
-        
+        mavenCentral()
     }
     dependencies {
         classpath 'com.android.tools.build:gradle:4.1.3'
@@ -18,8 +17,7 @@ buildscript {
 allprojects {
     repositories {
         google()
-        jcenter()
-        
+        mavenCentral()
     }
 }
 

gradle/wrapper/gradle-wrapper.properties

@@ -3,5 +3,5 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.5-bin.zip
-distributionSha256Sum=23e7d37e9bb4f8dabb8a3ea7fdee9dd0428b9b1a71d298aefd65b11dccea220f
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.1.1-bin.zip
+distributionSha256Sum=bf8b869948901d422e9bb7d1fa61da6a6e19411baa7ad6ee929073df85d6365d