vsx-registry: add ENOTFOUND to changelog

Clarifies that it concerns specifically ENOTFOUND errors

Contributed by STMicroelectronics
Signed-off-by: Samuel BERG <samuel.berg@st.com>

CHANGELOG.md

@@ -6,7 +6,7 @@
 ## v1.41.0 -
 - [application-package] Quit Electron app when back end fails to start [#12778](https://github.com/eclipse-theia/theia/pull/12778) - Contributed on behalf of STMicroelectronics.
 - [vscode] added support for tree checkbox api [#12836](https://github.com/eclipse-theia/theia/pull/12836) - Contributed on behalf of STMicroelectronics
-- [vsx-registry] added a hint to extension fetching errors [#12858](https://github.com/eclipse-theia/theia/pull/12858) - Contributed by STMicroelectronics
+- [vsx-registry] added a hint to extension fetching ENOTFOUND errors [#12858](https://github.com/eclipse-theia/theia/pull/12858) - Contributed by STMicroelectronics
 
 ## v1.40.0 - 07/27/2023