[MC-204861] Datapack format potential conflicts

Fixed in 20w46a by changing Datapack format, but please, remember about this kind of stuff in the future.

In 20w45a there was a change that renamed minecraft:grass_path to minecraft:dirt_path. Due to that, resource pack format was increased, but datapack's not. This change will create conflicts in datapack tag and function files that are using minecraft:grass_path. This will also make people think that potential datapack is compatible with both 20w45a+ and 1.16.3-4, but it's not. Same thing with files using cauldron "level" data.

Example of console output for datapack using cauldron "level" data. This output is not a thing for 1.16.3 and 1.16.4.

Failed to load function ve:infection_deaggro_timer
java.util.concurrent.CompletionException: java.lang.IllegalArgumentException: Whilst parsing command on line 13: Block minecraft:cauldron does not have property 'level' at position 79: ...:cauldron[<--[HERE]
	at java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:273)
	at java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:280)
	at java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1584)
	at java.util.concurrent.CompletableFuture$AsyncSupply.exec(CompletableFuture.java:1574)
	at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289)
	at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056)
	at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1689)
	at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157)
Caused by: java.lang.IllegalArgumentException: Whilst parsing command on line 13: Block minecraft:cauldron does not have property 'level' at position 79: ...:cauldron[<--[HERE]
	at cy.a(SourceFile:62)
	at wf.a(SourceFile:86)
	at wf$$Lambda$4255/777187694.get(Unknown Source)
	at java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1582)
	... 5 more

Failed to load function ve:infection_deaggro_timer
java.util.concurrent.CompletionException: java.lang.IllegalArgumentException: Whilst parsing command on line 13: Block minecraft:cauldron does not have property 'level' at position 79: ...:cauldron[<--[HERE]
	at java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:273)
	at java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:280)
	at java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1584)
	at java.util.concurrent.CompletableFuture$AsyncSupply.exec(CompletableFuture.java:1574)
	at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289)
	at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056)
	at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1689)
	at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157)
Caused by: java.lang.IllegalArgumentException: Whilst parsing command on line 13: Block minecraft:cauldron does not have property 'level' at position 79: ...:cauldron[<--[HERE]
	at cy.a(SourceFile:62)
	at wf.a(SourceFile:86)
	at wf$$Lambda$4255/777187694.get(Unknown Source)
	at java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1582)
	... 5 more

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