Fix all potential errors with rules

Update RuleStringDecryptor.java

Fixes java-deobfuscator#675

Update ISSUE_TEMPLATE.md

Add back note

September Update

-Radon v2 antitamper transformer (credit to @Mysels)
-Improved ZKM 8 transformers

August Update

Fix HideAccessTransformer

Bump ASM version to 8.0.1

Fixes

-ASM version set to 6.0, since javavm uses 6.0
-Obscure bug with MethodExecutor

July Update