GHA: disable autotools static libcurl in many jobs

To avoid building libcurl in both static and shared flavor by default.
It results in 1.5-2.x speed-up for the curl build step in most jobs.
Saving a total of 6-7 minutes. In the Cygwin job alone it saves 1-1.5m.

Also:
- enable static + shared in a Windows job to keep testing this combo.

Follow-up to ff958fc4b2 #20159

Closes #20167

.github/workflows/http3-linux.yml

@@ -664,7 +664,7 @@ jobs:
               -DHTTPD_NGHTTPX=/home/runner/nghttp2/build/bin/nghttpx \
               ${MATRIX_GENERATE}
           else
-            mkdir bld && cd bld && ../configure --enable-warnings --enable-werror --enable-debug \
+            mkdir bld && cd bld && ../configure --enable-warnings --enable-werror --enable-debug --disable-static \
               --with-libuv \
               --with-test-nghttpx=/home/runner/nghttp2/build/bin/nghttpx \
               --disable-dependency-tracking --enable-option-checking=fatal \