Fix url_prefix sample value in README (#254)

Author: denrase

README.md

@@ -104,7 +104,7 @@ ignore_missing=true
 | org | Organization's slug | e.g. sentry-sdks (string) | yes | SENTRY_ORG |
 | auth_token | Auth Token | e.g. 64 random characteres (string)  | yes | SENTRY_AUTH_TOKEN |
 | url | URL | e.g. https<area>://mysentry.invalid/ (string)  | no | SENTRY_URL |
-| url_prefix | URL prefix for JS source maps | e.g. https<area>://mysentry.invalid/ (string) | no | - |
+| url_prefix | URL prefix for JS source maps | e.g. ~/app/ (string) | no | - |
 | wait_for_processing | Wait for server-side processing of uploaded files | false (boolean)  | no | - |
 | log_level | Configures the log level for sentry-cli | warn (string)  | no | SENTRY_LOG_LEVEL |
 | release | The release version for source maps, it should match the release set by the SDK | name@version from pubspec (string)  | no | SENTRY_RELEASE |

integration-test/android/build.gradle

@@ -1,5 +1,5 @@
 buildscript {
-    ext.kotlin_version = '1.6.10'
+    ext.kotlin_version = '1.7.0'
     repositories {
         google()
         mavenCentral()