Update nushell version for release workflow (#6666)

.github/workflows/release-pkg.nu

@@ -76,9 +76,9 @@ cp -v README.release.txt $'($dist)/README.txt'
 
 $'(char nl)Check binary release version detail:'; hr-line
 let ver = if $os == 'windows-latest' {
-    (do -i { ./output/nu.exe -c 'version' }) | str collect
+    (do -i { ./output/nu.exe -c 'version' }) | str join
 } else {
-    (do -i { ./output/nu -c 'version' }) | str collect
+    (do -i { ./output/nu -c 'version' }) | str join
 }
 if ($ver | str trim | is-empty) {
     $'(ansi r)Incompatible nu binary...(ansi reset)'

.github/workflows/release.yml

@@ -72,7 +72,7 @@ jobs:
     - name: Setup Nushell
       uses: hustcer/setup-nu@v2.1
       with:
-        version: 0.68.0
+        version: 0.69.1
       env:
         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}