Tiltfile: disable explorer in CI

Pod appears to be stuck in a restart loop and lacks a readiness probe.

Change-Id: If051841625b02537f8a13a0d78cdd0ccd69f27e3

Tiltfile

@@ -244,27 +244,27 @@ k8s_resource(
 )
 
 # explorer web app
+if not ci:  # add readiness probe before re-enabling
+    docker_build(
+        ref = "explorer",
+        context = "./explorer",
+        dockerfile = "./explorer/Dockerfile",
+        ignore = ["./explorer/node_modules"],
+        live_update = [
+            sync("./explorer/src", "/home/node/app/src"),
+            sync("./explorer/public", "/home/node/app/public"),
+        ],
+    )
 
-docker_build(
-    ref = "explorer",
-    context = "./explorer",
-    dockerfile = "./explorer/Dockerfile",
-    ignore = ["./explorer/node_modules"],
-    live_update = [
-        sync("./explorer/src", "/home/node/app/src"),
-        sync("./explorer/public", "/home/node/app/public"),
-    ],
-)
+    k8s_yaml_with_ns("devnet/explorer.yaml")
 
-k8s_yaml_with_ns("devnet/explorer.yaml")
-
-k8s_resource(
-    "explorer",
-    resource_deps = ["proto-gen-web"],
-    port_forwards = [
-        port_forward(8001, name = "Explorer Web UI [:8001]"),
-    ],
-)
+    k8s_resource(
+        "explorer",
+        resource_deps = ["proto-gen-web"],
+        port_forwards = [
+            port_forward(8001, name = "Explorer Web UI [:8001]"),
+        ],
+    )
 
 # terra devnet