[kubecdl] Fix server name pattern

[aledbf]

Description

New generations dropped the -external sufix.

Release Notes

[kubecdl] Fix server name pattern

[kylos101]

LGTM

[codecov]

Codecov Report

Merging #8770 (9799bca) into main (f699ffb) will decrease coverage by 1.13%.
The diff coverage is n/a.

❗ Current head 9799bca differs from pull request most recent head 941aa74. Consider uploading reports for the commit 941aa74 to get more accurate results

@@            Coverage Diff             @@
##             main    #8770      +/-   ##
==========================================
- Coverage   12.31%   11.17%   -1.14%     
==========================================
  Files          20       18       -2     
  Lines        1161      993     -168     
==========================================
- Hits          143      111      -32     
+ Misses       1014      880     -134     
+ Partials        4        2       -2     

Flag	Coverage Δ
components-gitpod-cli-app	11.17% <ø> (ø)
components-local-app-app-darwin-amd64	?
components-local-app-app-darwin-arm64	?
components-local-app-app-linux-amd64	?
components-local-app-app-linux-arm64	?
components-local-app-app-windows-386	?
components-local-app-app-windows-amd64	?
components-local-app-app-windows-arm64	?

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Impacted Files	Coverage Δ
components/local-app/pkg/auth/pkce.go
components/local-app/pkg/auth/auth.go

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[kylos101]

LGTM