Bump shepherd.js from 11.2.0 to 15.2.3

Bumps [shepherd.js](https://github.com/shipshapecode/shepherd) from 11.2.0 to 15.2.3.
- [Release notes](https://github.com/shipshapecode/shepherd/releases)
- [Changelog](https://github.com/shipshapecode/shepherd/blob/main/CHANGELOG.md)
- [Commits](https://github.com/shipshapecode/shepherd/commits)

---
updated-dependencies:
- dependency-name: shepherd.js
  dependency-version: 15.2.3
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

package-lock.json

@@ -1054,13 +1054,23 @@
                 }
             }
         },
-        "node_modules/deepmerge": {
-            "version": "4.3.1",
-            "resolved": "https://registry.npmjs.org/deepmerge/-/deepmerge-4.3.1.tgz",
-            "integrity": "sha512-3sUqbMEc77XqpdNO7FRyRog+eW3ph+GYCbj+rK+uYyRMuwsVy0rMiVtPn+QJlKFvWP/1PYpapqYn0Me2knFn+A==",
-            "license": "MIT",
+        "node_modules/deepmerge-ts": {
+            "version": "7.1.6",
+            "resolved": "https://registry.npmjs.org/deepmerge-ts/-/deepmerge-ts-7.1.6.tgz",
+            "integrity": "sha512-gQhL1ksGBLQbHeAo47YU6cs2ahd3Pv+8PFYoWogNZbQnNwQyOh9Ad5kbeHFiWwbKdeWQJ5Z7Y7mwb9ew2hXBLw==",
+            "funding": [
+                {
+                    "type": "ko-fi",
+                    "url": "https://ko-fi.com/rebeccastevens"
+                },
+                {
+                    "type": "tidelift",
+                    "url": "https://tidelift.com/funding/github/npm/deepmerge-ts"
+                }
+            ],
+            "license": "BSD-3-Clause",
             "engines": {
-                "node": ">=0.10.0"
+                "node": ">=16.0.0"
             }
         },
         "node_modules/define-data-property": {
@@ -2279,20 +2289,16 @@
             }
         },
         "node_modules/shepherd.js": {
-            "version": "11.2.0",
-            "resolved": "https://registry.npmjs.org/shepherd.js/-/shepherd.js-11.2.0.tgz",
-            "integrity": "sha512-2hbz3N7GuuTjI7y3sfnoqKnH0cNhExx67IJtCTGQI2KhBEyvegsDYW5qjj5BlvvVtQjmL/O/J1GQEciwfoZWpw==",
-            "license": "MIT",
+            "version": "15.2.3",
+            "resolved": "https://registry.npmjs.org/shepherd.js/-/shepherd.js-15.2.3.tgz",
+            "integrity": "sha512-FyLH/c25YlTS5d+cL9oLajzfW0TzNl43sysQG6EK4bf60n9les7TsIUekHTTKyMEtcARIVHW2d1N9sqeDkIsbQ==",
+            "license": "AGPL-3.0",
             "dependencies": {
-                "@floating-ui/dom": "^1.5.1",
-                "deepmerge": "^4.3.1"
+                "@floating-ui/dom": "^1.8.0",
+                "deepmerge-ts": "^7.1.5"
             },
             "engines": {
-                "node": "16.* || >= 18"
-            },
-            "funding": {
-                "type": "individual",
-                "url": "https://github.com/sponsors/RobbieTheWagner"
+                "node": ">= 20"
             }
         },
         "node_modules/slash": {
@@ -2728,7 +2734,7 @@
                 "i18next-localstorage-backend": "^4.2.0",
                 "leaflet": "^1.9.4",
                 "patch-package": "^8.0.1",
-                "shepherd.js": "^11.2.0",
+                "shepherd.js": "^15.2.3",
                 "store": "^2.0.12"
             },
             "devDependencies": {

resources/assets/v3/package.json

@@ -20,7 +20,7 @@
         "i18next-localstorage-backend": "^4.2.0",
         "leaflet": "^1.9.4",
         "patch-package": "^8.0.1",
-        "shepherd.js": "^11.2.0",
+        "shepherd.js": "^15.2.3",
         "store": "^2.0.12"
     },
     "type": "module",