Fix chromium branch in quarto check to await async methods

The chromium fallback branch in chromeCb() accessed binDir and
installedVersion as properties but they are async functions on the
InstallableTool interface. This was pre-existing dead code (the name
comparison never matched), but now reachable after the registry key
lookup fix. Properly await both methods.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: cderv

src/command/check/check.ts

@@ -474,16 +474,20 @@ async function checkInstall(conf: CheckConfiguration) {
       chromeHeadlessOutput.push(
         `${kIndent}Using: Chromium installed by Quarto`,
       );
-      if (chromiumQuarto?.binDir) {
-        chromeHeadlessOutput.push(
-          `${kIndent}Path: ${chromiumQuarto?.binDir}`,
-        );
-        chromeJson["path"] = chromiumQuarto?.binDir;
+      if (chromiumQuarto.binDir) {
+        const binPath = await chromiumQuarto.binDir();
+        if (binPath) {
+          chromeHeadlessOutput.push(
+            `${kIndent}Path: ${binPath}`,
+          );
+          chromeJson["path"] = binPath;
+        }
       }
+      const chromiumVersion = await chromiumQuarto.installedVersion();
       chromeHeadlessOutput.push(
-        `${kIndent}Version: ${chromiumQuarto.installedVersion}`,
+        `${kIndent}Version: ${chromiumVersion}`,
       );
-      chromeJson["version"] = chromiumQuarto.installedVersion;
+      chromeJson["version"] = chromiumVersion;
     } else {
       chromeHeadlessOutput.push(`${kIndent}Chrome:  (not detected)`);
       chromeJson["installed"] = false;