Make cmake.ctest.failurePatterns match FailurePatternsConfig

The package.json schema for `cmake.ctest.failurePattens` was more
lenient in some ways than the corresponding `FailurePatternsConfig`
TypeScript type. Bring them in line with each other.

Author: malsyned

package.json

@@ -2272,45 +2272,62 @@
           "scope": "machine-overridable"
         },
         "cmake.ctest.failurePatterns": {
-          "type": ["string", "array"],
-          "items": {
-            "type": ["string", "object"],
-            "properties": {
-              "regexp": {
-                "type": "string",
-                "description": "%cmake-tools.configuration.cmake.ctest.failurePatterns.regexp%"
-              },
-              "file": {
-                "type": "integer",
-                "description": "%cmake-tools.configuration.cmake.ctest.failurePatterns.file%",
-                "default": 1
-              },
-              "line": {
-                "type": "integer",
-                "description": "%cmake-tools.configuration.cmake.ctest.failurePatterns.line%",
-                "default": 2
-              },
-              "message": {
-                "type": "integer",
-                "description": "%cmake-tools.configuration.cmake.ctest.failurePatterns.message%",
-                "default": 3
-              },
-              "actual": {
-                "type": ["integer" ],
-                "description": "%cmake-tools.configuration.cmake.ctest.failurePatterns.actual%"
-              },
-              "expected": {
-                "type": "integer",
-                "description": "%cmake-tools.configuration.cmake.ctest.failurePatterns.expected%"
+          "oneOf": [
+            {
+              "type": "array",
+              "items": {
+                "oneOf": [
+                  {
+                    "type": "object",
+                    "required": [
+                      "regexp"
+                    ],
+                    "properties": {
+                      "regexp": {
+                        "type": "string",
+                        "description": "%cmake-tools.configuration.cmake.ctest.failurePatterns.regexp%"
+                      },
+                      "file": {
+                        "type": "integer",
+                        "description": "%cmake-tools.configuration.cmake.ctest.failurePatterns.file%",
+                        "default": 1
+                      },
+                      "line": {
+                        "type": "integer",
+                        "description": "%cmake-tools.configuration.cmake.ctest.failurePatterns.line%",
+                        "default": 2
+                      },
+                      "message": {
+                        "type": "integer",
+                        "description": "%cmake-tools.configuration.cmake.ctest.failurePatterns.message%",
+                        "default": 3
+                      },
+                      "actual": {
+                        "type": "integer",
+                        "description": "%cmake-tools.configuration.cmake.ctest.failurePatterns.actual%"
+                      },
+                      "expected": {
+                        "type": "integer",
+                        "description": "%cmake-tools.configuration.cmake.ctest.failurePatterns.expected%"
+                      }
+                    }
+                  },
+                  {
+                    "type": "string"
+                  }
+                ]
               }
+            },
+            {
+              "type": "string"
             }
-          },
+          ],
           "default": [
             {
               "regexp": "(.*?):(\\d+): *(?:error: *)(.*)"
             },
             {
-                "regexp": "(.*?)\\((\\d+)\\): *(?:error: *)(.*)"
+              "regexp": "(.*?)\\((\\d+)\\): *(?:error: *)(.*)"
             }
           ],
           "markdownDescription": "%cmake-tools.configuration.cmake.ctest.failurePatterns.markdownDescription%",