gen-screenshot: replace deprecated `Deno.run`

gen-screenshot.ts

@@ -49,9 +49,10 @@ try {
     `screenshot/${screenshotFile}`,
   );
 
-  await Deno.run({
-    cmd: [
+  await (new Deno.Command(
     "convert",
+    {
+      args: [
         "-resize",
         "25%",
         "-adaptive-sharpen",
@@ -59,11 +60,13 @@ try {
         `screenshot/${screenshotFile}`,
         `thumbnail/${screenshotFile}`,
       ],
-  }).status();
+      stderr: "inherit",
+      stdout: "inherit",
+    },
+  )).output();
 
-  await Deno.run({
-    cmd: [
-      "optipng",
+  await (new Deno.Command("optipng", {
+    args: [
       "-o",
       "5",
       "-strip",
@@ -71,7 +74,9 @@ try {
       `screenshot/${screenshotFile}`,
       `thumbnail/${screenshotFile}`,
     ],
-  }).status();
+    stderr: "inherit",
+    stdout: "inherit",
+  })).output();
 } catch (err) {
   console.error(err);
 } finally {