CHANGELOG: update requirements example (#1262)

To match at least a > 1.0.0 world as the description

Author: xrmx

CHANGELOG.md

@@ -14,8 +14,8 @@ We recommend to pin your version requirements against `1.x.*` or `1.x.y`.
 Either one of the following is fine:
 
 ```
-sentry-sdk>=0.10.0,<0.11.0
-sentry-sdk==0.10.1
+sentry-sdk>=1.0.0,<2.0.0
+sentry-sdk==1.5.0
 ```
 
 A major release `N` implies the previous release `N-1` will no longer receive updates. We generally do not backport bugfixes to older versions unless they are security relevant. However, feel free to ask for backports of specific commits on the bugtracker.