Update llgpl license as exception

Reference: #91
Signed-off-by: Ayan Sinha Mahapatra <[email protected]>

Author: AyanSinhaMahapatra

src/license_expression/data/license_key_index.json.ABOUT

@@ -1,5 +1,5 @@
 about_resource: scancode-licensedb-index.json
-download_url: https://raw.githubusercontent.com/nexB/scancode-licensedb/b41df0183fe6de9c769ce0fe34c06f5f1a1dc968/docs/index.json
+download_url: https://raw.githubusercontent.com/nexB/scancode-licensedb/a8e8168efbd65ff8ccaa7990ef70d0b81819ddbc/docs/index.json
 spdx_license_list_version: 3.23
 name: scancode-licensedb-index.json
 license_expression: cc-by-4.0

src/license_expression/data/scancode-licensedb-index.json

@@ -14600,7 +14600,7 @@
     "other_spdx_license_keys": [
       "LicenseRef-scancode-llgpl"
     ],
-    "is_exception": false,
+    "is_exception": true,
     "is_deprecated": false,
     "json": "llgpl.json",
     "yaml": "llgpl.yml",