fix(align-deps): fix root workspace being checked twice (#4094)

Author: tido64

.changeset/easy-pillows-tease.md

@@ -0,0 +1,5 @@
+---
+"@rnx-kit/align-deps": patch
+---
+
+Fixed root workspace being checked twice depending on configuration

packages/align-deps/src/cli.ts

@@ -145,7 +145,10 @@ async function getManifests(
     const allPackages = (await findWorkspacePackages()).map((p) =>
       path.join(path.relative(cwd, p), "package.json")
     );
-    allPackages.push(manifestPath);
+    // Add the root workspace if it isn't there
+    if (!allPackages.includes(manifestPath)) {
+      allPackages.push(manifestPath);
+    }
     return allPackages;
   } catch (e) {
     if (hasProperty(e, "message")) {