ci: Use GitHub mirror for CoCoA package (cvc5#11173)

We are constantly hitting timeouts on CI when trying to download CoCoA
from the CoCoA website. We now mirror the required version in a separate
repository and download it from there to fix this issue.

cmake/FindCoCoA.cmake

@@ -68,12 +68,12 @@ if(NOT CoCoA_FOUND_SYSTEM)
   ExternalProject_Add(
     CoCoA-EP
     ${COMMON_EP_CONFIG}
-    URL "http://cocoa.dima.unige.it/cocoa/cocoalib/tgz/CoCoALib-${CoCoA_VERSION}.tgz"
+    URL https://github.com/cvc5/cvc5-deps/blob/main/CoCoALib-${CoCoA_VERSION}.tgz?raw=true
     URL_HASH SHA256=f8bb227e2e1729e171cf7ac2008af71df25914607712c35db7bcb5a044a928c6
     # CoCoA requires C++14, but the check does not work with compilers that
     # default to C++17 or newer. The patch fixes the check.
     PATCH_COMMAND patch -p1 -d <SOURCE_DIR>
-        -i ${CMAKE_CURRENT_LIST_DIR}/deps-utils/CoCoALib-0.99800-trace.patch
+        -i ${CMAKE_CURRENT_LIST_DIR}/deps-utils/CoCoALib-${CoCoA_VERSION}-trace.patch
     BUILD_IN_SOURCE YES
     CONFIGURE_COMMAND ${SHELL} ./configure --prefix=<INSTALL_DIR> --with-libgmp=${GMP_LIBRARY}
         --with-cxx=${CMAKE_CXX_COMPILER} --with-cxxflags=${CoCoA_CXXFLAGS}