Update swift/ql/lib/swift.qll

Co-authored-by: Geoffrey White <[email protected]>

Author: MathiasVP

swift/ql/lib/swift.qll

@@ -10,5 +10,6 @@ import codeql.swift.elements.expr.InitializerCallExpr
 import codeql.swift.elements.expr.SelfRefExpr
 import codeql.swift.elements.decl.MethodDecl
 import codeql.swift.elements.decl.ClassOrStructDecl
+import codeql.swift.elements.type.FloatingPointType
 import codeql.swift.elements.type.NumericOrCharType
 import codeql.swift.Unit