bundle kubectl 1.21.2 (#3267)

Signed-off-by: Jari Kolehmainen <jari.kolehmainen@gmail.com>

package.json

@@ -48,7 +48,7 @@
     "postversion": "git push --set-upstream ${GIT_REMOTE:-origin} release/v$npm_package_version"
   },
   "config": {
-    "bundledKubectlVersion": "1.18.15",
+    "bundledKubectlVersion": "1.21.2",
     "bundledHelmVersion": "3.5.4",
     "sentryDsn": ""
   },

src/main/kubectl.ts

@@ -46,10 +46,10 @@ const kubectlMap: Map<string, string> = new Map([
   ["1.15", "1.15.11"],
   ["1.16", "1.16.15"],
   ["1.17", "1.17.17"],
-  ["1.18", bundledVersion],
-  ["1.19", "1.19.7"],
-  ["1.20", "1.20.2"],
-  ["1.21", "1.21.1"]
+  ["1.18", "1.18.20"],
+  ["1.19", "1.19.12"],
+  ["1.20", "1.20.8"],
+  ["1.21", bundledVersion]
 ]);
 const packageMirrors: Map<string, string> = new Map([
   ["default", "https://storage.googleapis.com/kubernetes-release/release"],