B11: ship npm binaries for linux-arm64 and win32-arm64

The napi loader resolves wickra-linux-arm64-gnu and
wickra-win32-arm64-msvc, but neither was published, so require('wickra')
failed on those platforms. Adds both to napi.triples and
optionalDependencies, adds their npm/ package templates, and extends the
release node-build matrix to build them on GitHub's native ARM runners
(ubuntu-24.04-arm, windows-11-arm).

bindings/node/package.json

@@ -35,9 +35,11 @@
       "defaults": false,
       "additional": [
         "x86_64-unknown-linux-gnu",
+        "aarch64-unknown-linux-gnu",
         "x86_64-apple-darwin",
         "aarch64-apple-darwin",
-        "x86_64-pc-windows-msvc"
+        "x86_64-pc-windows-msvc",
+        "aarch64-pc-windows-msvc"
       ]
     }
   },
@@ -46,9 +48,11 @@
   },
   "optionalDependencies": {
     "wickra-linux-x64-gnu": "0.1.4",
+    "wickra-linux-arm64-gnu": "0.1.4",
     "wickra-darwin-x64": "0.1.4",
     "wickra-darwin-arm64": "0.1.4",
-    "wickra-win32-x64-msvc": "0.1.4"
+    "wickra-win32-x64-msvc": "0.1.4",
+    "wickra-win32-arm64-msvc": "0.1.4"
   },
   "scripts": {
     "build": "napi build --platform --release",