Bump yargs from 15.3.1 to 15.4.0

Bumps [yargs](https://github.com/yargs/yargs) from 15.3.1 to 15.4.0.
- [Release notes](https://github.com/yargs/yargs/releases)
- [Changelog](https://github.com/yargs/yargs/blob/master/CHANGELOG.md)
- [Commits](https://github.com/yargs/yargs/compare/v15.3.1...v15.4.0)

Signed-off-by: dependabot[bot] <support@github.com>

package-lock.json

@@ -12627,13 +12627,13 @@
       "dev": true
     },
     "yargs": {
-      "version": "15.3.1",
-      "resolved": "https://registry.npmjs.org/yargs/-/yargs-15.3.1.tgz",
-      "integrity": "sha512-92O1HWEjw27sBfgmXiixJWT5hRBp2eobqXicLtPBIDBhYB+1HpwZlXmbW2luivBJHBzki+7VyCLRtAkScbTBQA==",
+      "version": "15.4.0",
+      "resolved": "https://registry.npmjs.org/yargs/-/yargs-15.4.0.tgz",
+      "integrity": "sha512-D3fRFnZwLWp8jVAAhPZBsmeIHY8tTsb8ItV9KaAaopmC6wde2u6Yw29JBIZHXw14kgkRnYmDgmQU4FVMDlIsWw==",
       "dev": true,
       "requires": {
         "cliui": "^6.0.0",
-        "decamelize": "^1.2.0",
+        "decamelize": "^3.2.0",
         "find-up": "^4.1.0",
         "get-caller-file": "^2.0.1",
         "require-directory": "^2.1.1",
@@ -12642,7 +12642,18 @@
         "string-width": "^4.2.0",
         "which-module": "^2.0.0",
         "y18n": "^4.0.0",
-        "yargs-parser": "^18.1.1"
+        "yargs-parser": "^18.1.2"
+      },
+      "dependencies": {
+        "decamelize": {
+          "version": "3.2.0",
+          "resolved": "https://registry.npmjs.org/decamelize/-/decamelize-3.2.0.tgz",
+          "integrity": "sha512-4TgkVUsmmu7oCSyGBm5FvfMoACuoh9EOidm7V5/J2X2djAwwt57qb3F2KMP2ITqODTCSwb+YRV+0Zqrv18k/hw==",
+          "dev": true,
+          "requires": {
+            "xregexp": "^4.2.4"
+          }
+        }
       }
     },
     "yargs-parser": {

package.json

@@ -79,7 +79,7 @@
     "ts-node-register": "^1.0.0",
     "typedoc": "^0.17.8",
     "typescript": "^3.9.6",
-    "yargs": "^15.3.1"
+    "yargs": "^15.4.0"
   },
   "nyc": {
     "include": [