GHA/non-native: un-ignore tests on OpenBSD, bump to -j8 for NetBSD/FreeBSD

- un-ignore tests (3017, FTP, TFTP) on OpenBSD
  Patch-by: Jacob Mealey
  Ref: https://github.com/curl/curl/issues/13623#issuecomment-2925129037
  Fixes: #13623

- KNOWN_BUGS: drop TFTP failures issue on OpenBSD.
  Fixes: #13623

- bump test parallelism to `-j8` (from `-j4`) for NetBSD, FreeBSD,
  to match OpenBSD.
  Before: https://github.com/curl/curl/actions/runs/15371760479
  After: https://github.com/curl/curl/actions/runs/15371937205

- FreeBSD: sync cmake `TFLAGS` with autotools. (This branch is not
  currently hit in CI.)
  Follow-up to 7f3d598276 #15040

Closes #17505

.github/workflows/non-native.yml

@@ -72,7 +72,7 @@ jobs:
             bld/src/curl --disable --version
             if [ '${{ matrix.arch }}' = 'x86_64' ]; then  # Slow on emulated CPU
               time cmake --build bld --target testdeps
-              export TFLAGS='-j4'
+              export TFLAGS='-j8'
               time cmake --build bld --target test-ci
             fi
             echo '::group::build examples'
@@ -112,7 +112,7 @@ jobs:
             bld/src/curl --disable --version
             if [ '${{ matrix.arch }}' = 'x86_64' ]; then  # Slow on emulated CPU
               time cmake --build bld --target testdeps
-              export TFLAGS='-j8 ~3017 ~TFTP ~FTP'  # FIXME: TFTP requests executed twice? Related: `curl: (69) TFTP: Access Violation`?
+              export TFLAGS='-j8'
               time cmake --build bld --target test-ci
             fi
             echo '::group::build examples'
@@ -169,7 +169,7 @@ jobs:
             if [ '${{ matrix.arch }}' = 'x86_64' ]; then  # Slow on emulated CPU
               time make -C tests
               if [ "${desc#*!runtests*}" = "${desc}" ]; then
-                time make test-ci V=1 TFLAGS='-j4'
+                time make test-ci V=1 TFLAGS='-j8'
               fi
             fi
             if [ "${desc#*!examples*}" = "${desc}" ]; then
@@ -206,6 +206,7 @@ jobs:
             if [ '${{ matrix.arch }}' = 'x86_64' ]; then  # Slow on emulated CPU
               time cmake --build bld --target testdeps
               if [ "${desc#*!runtests*}" = "${desc}" ]; then
+                export TFLAGS='-j8'
                 time cmake --build bld --target test-ci
               fi
             fi

docs/KNOWN_BUGS

@@ -74,7 +74,6 @@ problems may have been fixed or changed somewhat since this was written.
  11. Internals
  11.1 gssapi library name + version is missing in curl_version_info()
  11.2 error buffer not set if connection to multiple addresses fails
- 11.3 TFTP tests fail on OpenBSD
  11.4 HTTP test server 'connection-monitor' problems
  11.5 Connection information when using TCP Fast Open
  11.6 test cases sometimes timeout
@@ -475,13 +474,6 @@ problems may have been fixed or changed somewhat since this was written.
  CURLE_COULDNT_CONNECT, but the error buffer set by CURLOPT_ERRORBUFFER
  remains empty. Issue: https://github.com/curl/curl/issues/544
 
-11.3 TFTP tests fail on OpenBSD
-
- When adding an OpenBSD job with tests to GHA, some tests consistently fail
- to run.
-
- See https://github.com/curl/curl/issues/13623
-
 11.4 HTTP test server 'connection-monitor' problems
 
  The 'connection-monitor' feature of the sws HTTP test server does not work