Add krew release bot back (#245)

Author: rajatjindal

.github/workflows/release.yml

@@ -20,4 +20,11 @@ jobs:
         args: release --rm-dist
       env:
         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-
+    - name: Update new version for plugin 'ctx' in krew-index
+      uses: rajatjindal/krew-release-bot@v0.0.38
+      with:
+        krew_template_file: .krew/ctx.yaml
+    - name: Update new version for plugin 'ns' in krew-index
+      uses: rajatjindal/krew-release-bot@v0.0.38
+      with:
+        krew_template_file: .krew/ns.yaml

.krew/ns.yaml

@@ -13,7 +13,6 @@ spec:
     If fzf is installed on your machine, you can interactively choose
     between the entries using the arrow keys, or by fuzzy searching
     as you type.
-    See https://github.com/ahmetb/kubectx for customization and details.
   platforms:
   - selector:
       matchExpressions: