⬆️ Update im4java version to our internal fork version

It fixes the v7 compatibility issues. Now, adding the -Dim4java.useV7=true
property to the java command when executing the penpot backend bundle it
switches to use the `magick` (ImageMagick v7 CLI) instead of `convert`
and `identify`.

backend/scripts/repl

@@ -40,6 +40,9 @@ export OPTIONS="
        -J-XX:+UnlockDiagnosticVMOptions \
        -J-XX:+DebugNonSafepoints";
 
+# Uncomment for use the ImageMagick v7.x
+# export OPTIONS="-J-Dim4java.useV7=true $OPTIONS";
+
 export OPTIONS_EVAL="nil"
 # export OPTIONS_EVAL="(set! *warn-on-reflection* true)"