Add license rule for LGPL-3.0-or-later notice pattern

Fixes #3935

Adds detection rule for the license notice pattern:
'Distributed under the terms of the GNU Lesser General Public License,
either version 3 of the License, or (at your option) any later version.'

This pattern was previously misdetected due to partial matching.

Author: harpreet-2146

src/licensedcode/data/rules/lgpl-3.0-plus_309.RULE

@@ -0,0 +1,7 @@
+---
+license_expression: lgpl-3.0-plus
+is_license_notice: yes
+relevance: 100
+---
+Distributed under the terms of the GNU Lesser General Public License,
+either version 3 of the License, or (at your option) any later version.