fix(router): fix openapi and add jsonschema validation (#1578)

Author: OlivierDehaene

.github/workflows/tests.yaml

@@ -41,6 +41,10 @@ jobs:
           components: rustfmt, clippy
       - name: Install Protoc
         uses: arduino/setup-protoc@v1
+      - name: Clean unused files
+        run: |
+          sudo rm -rf /usr/local/lib/android # will release about 10 GB if you don't need Android
+          sudo rm -rf /usr/share/dotnet # will release about 20GB if you don't need .NET
       - name: Install sccache
         run: |
           curl -fsSL https://github.com/mozilla/sccache/releases/download/v$SCCACHE/sccache-v$SCCACHE-x86_64-unknown-linux-musl.tar.gz | tar -xzv --strip-components=1 -C /usr/local/bin sccache-v$SCCACHE-x86_64-unknown-linux-musl/sccache

Cargo.lock

@@ -1022,6 +1022,57 @@
           }
         }
       },
+      "GrammarType": {
+        "oneOf": [
+          {
+            "type": "object",
+            "required": [
+              "type",
+              "value"
+            ],
+            "properties": {
+              "type": {
+                "type": "string",
+                "enum": [
+                  "json"
+                ]
+              },
+              "value": {
+                "type": "string",
+                "description": "A string that represents a [JSON Schema](https://json-schema.org/).\n\nJSON Schema is a declarative language that allows to annotate JSON documents\nwith types and descriptions.",
+                "example": {
+                  "properties": {
+                    "location": {
+                      "type": "string"
+                    }
+                  }
+                }
+              }
+            }
+          },
+          {
+            "type": "object",
+            "required": [
+              "type",
+              "value"
+            ],
+            "properties": {
+              "type": {
+                "type": "string",
+                "enum": [
+                  "regex"
+                ]
+              },
+              "value": {
+                "type": "string"
+              }
+            }
+          }
+        ],
+        "discriminator": {
+          "propertyName": "type"
+        }
+      },
       "Info": {
         "type": "object",
         "required": [