Update testing packages to v0.26.3 (#647)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

package.json

@@ -53,7 +53,7 @@
     "@tsconfig/node16-strictest": "1.0.4",
     "@types/json-schema": "7.0.11",
     "@types/node": "18.11.18",
-    "@vitest/coverage-c8": "0.26.2",
+    "@vitest/coverage-c8": "0.26.3",
     "ajv": "8.11.2",
     "dotenv": "16.0.3",
     "eslint": "8.31.0",
@@ -62,6 +62,6 @@
     "prettier": "2.8.1",
     "sucrase": "3.29.0",
     "tsconfig-paths": "4.1.1",
-    "vitest": "0.26.2"
+    "vitest": "0.26.3"
   }
 }