Update kbpgp package (resolves #2135) (#2136)

Author: GCHQDeveloper581

package-lock.json

@@ -147,7 +147,7 @@
     "jsonwebtoken": "8.5.1",
     "jsqr": "^1.4.0",
     "jsrsasign": "^11.1.0",
-    "kbpgp": "2.1.15",
+    "kbpgp": "^2.1.17",
     "libbzip2-wasm": "0.0.4",
     "libyara-wasm": "^1.2.1",
     "lodash": "^4.17.21",