Update list of operators for all languages

[inferrinizzard]

• resolves Parse error when using Postgres JSON syntax #291
• updated operators for all languages if not already comprehensive
• added missing operators for Postgres

[inferrinizzard]

the :: operator is some languages is odd since it's not used with the same spacing, ie. it's usually foo::bar instead of foo :: bar, may move to identifier pattern if needed

[nene]

:: is a type cast operator in Postgres. We definitely shouldn't make it part of an identifier. Just like with the . operator we can simply format it differently from other operators.

https://www.postgresql.org/docs/current/sql-expressions.html#SQL-SYNTAX-TYPE-CASTS

[nene]

In Transact-SQL :: is a scope-resolution operator: https://docs.microsoft.com/en-us/sql/t-sql/language-elements/scope-resolution-operator-transact-sql?view=sql-server-ver16