Change EntityPlayer ASM code for Java 21+ compat

[jchung01]

Previous method was counting InvokeSpecial instructions, which break in Java 11+ because one of the instructions (EntityPlayer#isInBed) is instead compiled as an InvokeVirutal (See related question).
Fugue (a mod for Java 21+/Cleanroom to fix other mods) patches the AR transformer by looking for a specific LineNumberNode, but line numbers don't match between original AR and this fork. So this PR changes the way the position to inject code is found.

Slightly changes the injection point of the code, but should be functionally equivalent.
Original AR:

if (RocketInventoryHelper.allowAccess(this) &&
    !this.world.isRemote &&
    this.openContainer != null && 
    !this.openContainer.canInteractWith(this))

This PR:

if (!this.world.isRemote &&
    RocketInventoryHelper.allowAccess(this) &&
    this.openContainer != null &&
    !this.openContainer.canInteractWith(this))

Enable Advanced Rocketry Patch in fugue.cfg must be false until CleanroomMC/Fugue#58 is merged.
Fixes #27.

[jchung01]

Actually, realized the Fugue PR should be enough to fix this. Will still leave this PR open if you want to merge it, as it should be more robust than the existing ASM code.