changed fragments to .sh extension

fragments/disabled/powershell.sh

@@ -0,0 +1,10 @@
+
+powershell)
+    #NOTE: powershell installers are not notarized
+    # credit: Tadayuki Onishi (@kenchan0130)
+    name="PowerShell"
+    type="pkg"
+    downloadURL=$(curl -fs "https://api.github.com/repos/Powershell/Powershell/releases/latest" \
+    | awk -F '"' '/browser_download_url/ && /pkg/ { print $4 }' | grep -v lts )
+    expectedTeamID="UBF8T346G9"
+    ;;