build(deps): update dependency @renovatebot/pgp to v1.4.0 (main) (#45754)

build(deps): update dependency @renovatebot/pgp to v1.4.0

| datasource | package          | from   | to    |
| ---------- | ---------------- | ------ | ----- |
| npm        | @renovatebot/pgp | 1.3.18 | 1.4.0 |

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

package.json

@@ -184,7 +184,7 @@
     "@renovatebot/good-enough-parser": "2.0.1",
     "@renovatebot/osv-offline": "3.0.10",
     "@renovatebot/pep440": "5.0.1",
-    "@renovatebot/pgp": "1.3.18",
+    "@renovatebot/pgp": "1.4.0",
     "@renovatebot/ruby-semver": "5.0.0",
     "@sindresorhus/is": "8.1.0",
     "@yarnpkg/core": "4.9.1",