move dependency to right package

The backend depends on argon2 since it is used for hashing passwords. Since
it is not used for building the package, the dependency is by the backend
package itself.

package.json

@@ -36,7 +36,6 @@
 		"lodash": "^4.17.21"
 	},
 	"dependencies": {
-		"argon2": "^0.30.2",
 		"execa": "5.1.1",
 		"gulp": "4.0.2",
 		"gulp-cssnano": "2.1.3",

packages/backend/package.json

@@ -28,6 +28,7 @@
 		"abort-controller": "3.0.0",
 		"ajv": "8.11.0",
 		"archiver": "5.3.1",
+		"argon2": "^0.30.2",
 		"autobind-decorator": "2.4.0",
 		"aws-sdk": "2.1165.0",
 		"bcryptjs": "2.4.3",

yarn.lock

@@ -3705,6 +3705,7 @@ __metadata:
     abort-controller: 3.0.0
     ajv: 8.11.0
     archiver: 5.3.1
+    argon2: ^0.30.2
     autobind-decorator: 2.4.0
     aws-sdk: 2.1165.0
     bcryptjs: 2.4.3
@@ -7872,7 +7873,6 @@ __metadata:
     "@types/gulp": 4.0.9
     "@types/gulp-rename": 2.0.1
     "@typescript-eslint/parser": ^5.46.1
-    argon2: ^0.30.2
     cross-env: 7.0.3
     cypress: 10.3.0
     execa: 5.1.1