ci: Move sanitizers task from Cirrus to GitHub Actions

.cirrus.yml

@@ -64,50 +64,6 @@ linux_container_snippet: &LINUX_CONTAINER
     # More than enough for our scripts.
     memory: 2G
 
-# Sanitizers
-task:
-  << : *LINUX_CONTAINER
-  env:
-    ECDH: yes
-    RECOVERY: yes
-    SCHNORRSIG: yes
-    ELLSWIFT: yes
-    CTIMETESTS: no
-  matrix:
-    - name: "Valgrind (memcheck)"
-      container:
-        cpu: 2
-      env:
-        # The `--error-exitcode` is required to make the test fail if valgrind found errors, otherwise it'll return 0 (https://www.valgrind.org/docs/manual/manual-core.html)
-        WRAPPER_CMD: "valgrind --error-exitcode=42"
-        SECP256K1_TEST_ITERS: 2
-    - name: "UBSan, ASan, LSan"
-      container:
-        memory: 2G
-      env:
-        CFLAGS: "-fsanitize=undefined,address -g"
-        UBSAN_OPTIONS: "print_stacktrace=1:halt_on_error=1"
-        ASAN_OPTIONS: "strict_string_checks=1:detect_stack_use_after_return=1:detect_leaks=1"
-        LSAN_OPTIONS: "use_unaligned=1"
-        SECP256K1_TEST_ITERS: 32
-  # Try to cover many configurations with just a tiny matrix.
-  matrix:
-    - env:
-        ASM: auto
-    - env:
-        ASM: no
-        ECMULTGENPRECISION: 2
-        ECMULTWINDOW: 2
-  matrix:
-    - env:
-        CC: clang
-    - env:
-        HOST: i686-linux-gnu
-        CC: i686-linux-gnu-gcc
-  test_script:
-    - ./ci/ci.sh
-  << : *CAT_LOGS
-
 # Memory sanitizers
 task:
   << : *LINUX_CONTAINER