GHA/linux: fix address sanitizer error output

Same issue as seen earlier in the tsan job. Fix it the same way, by
switching to cmake to avoid autotools' libtool confusing the analyzer.
Ref: 2a46df31fdb91851895bc46d81f0065e6cafc80b #18274

Configuration remains identical. I removed libssh2 from the installed
packages, because it was unused before, but cmake enabled it by default
and libssh2 has memory leaks:
Ref: https://github.com/curl/curl/actions/runs/17941312820/job/51018425159

Fixing:
```
/usr/bin/llvm-symbolizer-18: /home/runner/work/curl/curl/bld/lib/.libs/libcurl.so.4: no version information available (required by /usr/bin/llvm-symbolizer-18)
/usr/bin/llvm-symbolizer-18: symbol lookup error: /home/runner/work/curl/curl/bld/lib/.libs/libcurl.so.4: undefined symbol: __asan_option_detect_stack_use_after_return
==33900==WARNING: Can't read from symbolizer at fd 3
[..]
==33900==WARNING: Can't write to symbolizer at fd 6
==33900==WARNING: Failed to use and restart external symbolizer
```
Ref: https://github.com/curl/curl/actions/runs/17939949191/job/51013953675?pr=18693

Cherry-picked from #18693
Closes #18696

diff --git a/.github/workflows/linux.yml b/.github/workflows/linux.yml
index 969b460d1dd41023032a5971734487b8ce9badb4..4badcad407734fb89b1b50c8597a6e4d5183af4e 100644 (file)
--- a/.github/workflows/linux.yml
+++ b/.github/workflows/linux.yml
@@ -242,12 +242,12 @@ jobs:
               --disable-debug --disable-unity
 
           - name: 'address-sanitizer'
-            install_packages: libssh2-1-dev clang libssl-dev libubsan1 libasan8 libtsan2
+            install_packages: clang libssl-dev libubsan1 libasan8 libtsan2
             install_steps: pytest randcurl
             CFLAGS: -fsanitize=address,undefined,signed-integer-overflow -fno-sanitize-recover=undefined,integer -Wformat -Werror=format-security -Werror=array-bounds -g
-            LDFLAGS: -fsanitize=address,undefined -fno-sanitize-recover=undefined,integer
-            LIBS: -ldl -lubsan
-            configure: CC=clang --with-openssl --enable-debug
+            LDFLAGS: -fsanitize=address,undefined -fno-sanitize-recover=undefined,integer -ldl -lubsan
+            CC: clang
+            generate: -DENABLE_DEBUG=ON
 
           - name: 'thread-sanitizer'
             install_packages: clang libtsan2