fix(gradle-server): restore missing suffix for jvmarg -Xmx

[DarkWeird]

Contains

Fix jvmArgs for server gradle task.
Bug prevent server to start with error:

Error occurred during initialization of VM
Too small maximum heap

introduced in #4175

How to test

1. Checkout it
2. run server task.
3. check that server started (any output from server)

[keturn]

Thank you for this, @DarkWeird. It was sloppy of me. I had been thinking that it was too small because other reasons, not because I had made a typo to only allocate 1,536 bytes. 😭

[DarkWeird]

Thank you for this, @DarkWeird. It was sloppy of me. I had been thinking that it was too small because other reasons, not because I had made a typo to only allocate 1,536 bytes. 😭

Yeah I thought that too at first.
I began to suspect later