add opentelemetry extension support

config/ext.json

@@ -432,6 +432,21 @@
         "type": "builtin",
         "arg-type-unix": "custom"
     },
+    "opentelemetry": {
+        "notes": true,
+        "support": {
+            "Windows": "wip"
+        },
+        "arg-type": "enable",
+        "source": "opentelemetry",
+        "unix-only": true,
+        "ext-suggests": [
+            "grpc",
+            "protobuf",
+            "ffi"
+        ],
+        "type": "external"
+    },
     "openssl": {
         "notes": true,
         "type": "builtin",

config/source.json

@@ -667,6 +667,16 @@
             "path": "COPYING"
         }
     },
+    "opentelemetry": {
+        "type": "url",
+        "url": "https://pecl.php.net/get/opentelemetry",
+        "path": "php-src/ext/opentelemetry",
+        "filename": "opentelemetry.tgz",
+        "license": {
+            "type": "file",
+            "path": "LICENSE"
+        }
+    },
     "openssl": {
         "type": "ghrel",
         "repo": "openssl/openssl",