GHA: set DO_NOT_TRACK=1

[vszakats]

No description provided.

[vszakats]

Unrelated, tests not passing in curl-for-win:

52: failed	--url https://curl.se/hello --set query=user=me
--- stdout --- 
expected:
'https://curl.se/hello?user%3dme\n'
got:
'https://curl.se/hello?user%3Dme\n'

132: failed	-s scheme:=http -s host:=localhost -s path:=/ABC%5C%5C -s 'query:=a&b&a%26b'
--- stdout --- 
expected:
'http://localhost/ABC%5c%5c?a&b&a%26b\n'
got:
'http://localhost/ABC%5C%5C?a&b&a%26b\n'

172: failed	https://example.com/one/t%61o/%2F%42/ --append path=%61
--- stdout --- 
expected:
'[https://example.com/one/tao/%2fB/%2561\n](https://example.com/one/tao/%2fB/%2561/n)'
got:
'[https://example.com/one/tao/%2FB/%2561\n](https://example.com/one/tao/%2FB/%2561/n)'

https://github.com/curl/trurl/actions/runs/24828262970/job/72669788356?pr=439