build: niv advisory-db: update caa8aa3d -> 12719bd2 (#3362)

## Changelog for advisory-db:
Branch: main
Commits: [rustsec/advisory-db@caa8aa3d...12719bd2](rustsec/advisory-db@caa8aa3...12719bd)

* [`1b75b995`](rustsec/advisory-db@1b75b99) RUSTSEC-2023-0059: add "uzers" fork as alternative for "users" ([RustSec/advisory-db⁠#1779](http://r.duckduckgo.com/l/?uddg=https://github.com/RustSec/advisory-db/issues/1779))
* [`0636c357`](rustsec/advisory-db@0636c35) CVE-2023-4863 in vendored libwebp ([RustSec/advisory-db⁠#1780](http://r.duckduckgo.com/l/?uddg=https://github.com/RustSec/advisory-db/issues/1780))
* [`19e0777e`](rustsec/advisory-db@19e0777) Assigned RUSTSEC-2023-0060 to libwebp-sys2, RUSTSEC-2023-0061 to libwebp-sys ([RustSec/advisory-db⁠#1781](http://r.duckduckgo.com/l/?uddg=https://github.com/RustSec/advisory-db/issues/1781))
* [`3fefc611`](rustsec/advisory-db@3fefc61) CVE-2023-39914 in bcder. ([RustSec/advisory-db⁠#1782](http://r.duckduckgo.com/l/?uddg=https://github.com/RustSec/advisory-db/issues/1782))
* [`12719bd2`](rustsec/advisory-db@12719bd) Assigned RUSTSEC-2023-0062 to bcder ([RustSec/advisory-db⁠#1783](http://r.duckduckgo.com/l/?uddg=https://github.com/RustSec/advisory-db/issues/1783))

nix/sources.json

@@ -6,10 +6,10 @@
         "homepage": "https://rustsec.org",
         "owner": "RustSec",
         "repo": "advisory-db",
-        "rev": "caa8aa3dd013ec13350064e3e0a60fdfdf72c0d0",
-        "sha256": "0gdnjvg4gn3gbcip66354v5md95c8nh9qbn97lczab2yikk4bfyr",
+        "rev": "12719bd23b88573977c7ad7fe818b05e8fbc33b3",
+        "sha256": "14j5q3973wxrzxb2m1zxizrpl6k1zdmpcmlcwskq3bimykq7f5g6",
         "type": "tarball",
-        "url": "https://github.com/RustSec/advisory-db/archive/caa8aa3dd013ec13350064e3e0a60fdfdf72c0d0.tar.gz",
+        "url": "https://github.com/RustSec/advisory-db/archive/12719bd23b88573977c7ad7fe818b05e8fbc33b3.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "canister_sandbox-x86_64-darwin": {