Update TOML Parser to 1.1.0 specification

[matthiasblaesing]

• trailing commas in arrays are now explicitly allowed (https://toml.io/en/v1.1.0#array)
• trailing commas in inline table declarations are explicitly allowed and can span multiple lines (https://toml.io/en/v1.1.0#inline-table)
• test and build dependencies were bumped (not the runtime dependency for antlr)
• javac release flag was activated to ensure code usage matches target classpath (this showed, that the source already targetted JDK 11, as String#isBlank is used)

[matthiasblaesing]

Just noticed a problem - returning to draft.

False alarm - the problem was in the cargo project parser from NetBeans. That had recursively added the current directory. The TOML parser was just the tip of the stack, that was visible in the traces.