chore: skip server certificate verification for http requests in e2e …

…tests (argoproj#15733)

* chore: skip verifying server certificate for http requests in e2e tests

Signed-off-by: Chris Fry <christopherfry@google.com>

* chore: skip certificate verification only for remote tests

Signed-off-by: Chris Fry <christopherfry@google.com>

---------

Signed-off-by: Chris Fry <christopherfry@google.com>

test/e2e/fixture/http.go

@@ -2,6 +2,7 @@ package fixture
 
 import (
 	"bytes"
+	"crypto/tls"
 	"encoding/json"
 	"io"
 	"net/http"
@@ -27,7 +28,14 @@ func DoHttpRequest(method string, path string, data ...byte) (*http.Response, er
 		return nil, err
 	}
 	req.AddCookie(&http.Cookie{Name: common.AuthCookieName, Value: token})
-	return http.DefaultClient.Do(req)
+
+	httpClient := &http.Client{
+		Transport: &http.Transport{
+			TLSClientConfig: &tls.Config{InsecureSkipVerify: IsRemote()},
+		},
+	}
+
+	return httpClient.Do(req)
 }
 
 // DoHttpJsonRequest executes a http request against the Argo CD API server and unmarshals the response body as JSON