fix: revert CI change

Author: achingbrain

src/utils.js

@@ -345,18 +345,8 @@ export async function everyMonorepoProject (projectDir, fn, opts) {
     inDegree.set(name, project.siblingDependencies.length)
   }
 
-  let concurrency = opts?.concurrency
-
-  if (concurrency == null && process.env.CI != null) {
-    concurrency = 1
-  }
-
-  if (concurrency == null) {
-    concurrency = os.availableParallelism?.() ?? os.cpus().length
-  }
-
   const queue = new PQueue({
-    concurrency
+    concurrency: opts?.concurrency ?? os.availableParallelism?.() ?? os.cpus().length
   })
 
   while (inDegree.size) {