ci: do not upload codecov bundle when TESTING=true

Signed-off-by: Spencer Murray <spencer.murray@sentry.io>

webpack.common.js

@@ -19,6 +19,7 @@ const { codecovWebpackPlugin } = require('@codecov/webpack-plugin')
 
 const appVersion = readFileSync('./version.php').toString().match(/OC_Version.+\[([0-9]{2})/)?.[1] ?? 'unknown'
 const isDev = process.env.NODE_ENV === 'development'
+const isTesting = process.env.TESTING === "true"
 
 const formatOutputFromModules = (modules) => {
 	// merge all configs into one object, and use AppID to generate the fileNames
@@ -227,7 +228,7 @@ const config = {
 			contextRegExp: /moment\/min$/,
 		}),
 		codecovWebpackPlugin({
-			enableBundleAnalysis: !isDev,
+			enableBundleAnalysis: !isDev && !isTesting,
 			bundleName: 'nextcloud',
 		}),
 	],