Replace deprecated javascript-lgtm.qls with modern CodeQL query suite

[jacopotediosi]

Webql still uses javascript-lgtm.qls, which no longer exists in modern CodeQL releases.

This causes the following error:

Error analyzing CodeQL database: 
Command: codeql database analyze --quiet my_analysis javascript-lgtm.qls --format=sarif-latest --output=my_analysis.sarif
Exit code: 2
Standard output:
Standard error: A fatal error occurred: javascript-lgtm.qls is not a .ql file, .qls file, a directory, or a query pack specification.

I think a possible fix could be the following:

query_suite="codeql/javascript-queries"