bump okhttp to 4.9.3

Signed-off-by: Andy Scherzinger <info@andy-scherzinger.de>

app/build.gradle

@@ -156,7 +156,7 @@ ext {
     butterknifeVersion = "10.2.3"
     coilKtVersion = "1.4.0"
     daggerVersion = "2.40.1"
-    okhttpVersion = "4.9.2"
+    okhttpVersion = "4.9.3"
     materialDialogsVersion = "3.3.0"
     parcelerVersion = "1.1.13"
     powermockVersion = "2.0.9"