Bump semver from 6.3.0 to 6.3.1 in /tests/demo-app

Bumps [semver](https://github.com/npm/node-semver) from 6.3.0 to 6.3.1.
- [Release notes](https://github.com/npm/node-semver/releases)
- [Changelog](https://github.com/npm/node-semver/blob/v6.3.1/CHANGELOG.md)
- [Commits](https://github.com/npm/node-semver/compare/v6.3.0...v6.3.1)

---
updated-dependencies:
- dependency-name: semver
  dependency-type: direct:production
...

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

tests/demo-app/package-lock.json

@@ -2438,7 +2438,8 @@
         },
         "kind-of": {
           "version": "6.0.2",
-          "resolved": ""
+          "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-6.0.2.tgz",
+          "integrity": "sha512-s5kLOcnH0XqDO+FvuaLX8DDjZ18CGFk7VygH40QoKPUQhW4e2rvM0rwUq0t8IQDOwYSeLK01U90OjzBTme2QqA=="
         }
       }
     },
@@ -4385,7 +4386,8 @@
     },
     "dot-prop": {
       "version": "4.2.0",
-      "resolved": "",
+      "resolved": "https://registry.npmjs.org/dot-prop/-/dot-prop-4.2.0.tgz",
+      "integrity": "sha512-tUMXrxlExSW6U2EXiiKGSBVdYgtV8qlHL+C10TsW4PURY/ic+eaysnSkwB4kA/mBlCyy/IKDJ+Lc3wbWeaXtuQ==",
       "requires": {
         "is-obj": "^1.0.0"
       }
@@ -5644,7 +5646,8 @@
         },
         "kind-of": {
           "version": "6.0.2",
-          "resolved": ""
+          "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-6.0.2.tgz",
+          "integrity": "sha512-s5kLOcnH0XqDO+FvuaLX8DDjZ18CGFk7VygH40QoKPUQhW4e2rvM0rwUq0t8IQDOwYSeLK01U90OjzBTme2QqA=="
         }
       }
     },
@@ -11984,9 +11987,9 @@
       }
     },
     "semver": {
-      "version": "6.3.0",
-      "resolved": "https://registry.npmjs.org/semver/-/semver-6.3.0.tgz",
-      "integrity": "sha512-b39TBaTSfV6yBrapU89p5fKekE2m/NwnDocOVruQFS1/veMgdzuPcnOM34M6CwxW8jH/lxEa5rBoDeUwu5HHTw=="
+      "version": "6.3.1",
+      "resolved": "https://registry.npmjs.org/semver/-/semver-6.3.1.tgz",
+      "integrity": "sha512-BR7VvDCVHO+q2xBEWskxS6DJE1qRnb7DxzUrogb71CWoSficBxYsiAGd+Kl0mmq/MprG9yArRkyrQxTO6XjMzA=="
     },
     "send": {
       "version": "0.17.1",
@@ -12406,7 +12409,8 @@
         },
         "kind-of": {
           "version": "6.0.2",
-          "resolved": ""
+          "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-6.0.2.tgz",
+          "integrity": "sha512-s5kLOcnH0XqDO+FvuaLX8DDjZ18CGFk7VygH40QoKPUQhW4e2rvM0rwUq0t8IQDOwYSeLK01U90OjzBTme2QqA=="
         }
       }
     },

tests/demo-app/package.json

@@ -43,7 +43,7 @@
     "resolve": "1.12.0",
     "resolve-url-loader": "3.1.0",
     "sass-loader": "7.2.0",
-    "semver": "6.3.0",
+    "semver": "6.3.1",
     "style-loader": "1.0.0",
     "terser-webpack-plugin": "1.4.1",
     "ts-pnp": "1.1.2",