Merge branch 'maint-0.4.3'

  o Testing:

    - Avoid conflicts between the fake sockets in tor's unit tests, and real

      file descriptors. Resolves issues running unit tests with GitHub Actions,

      where the process that embeds or launches the tests has already opened a

      large number of file descriptors.

      Fixes bug 33782; bugfix on 0.2.8.1-alpha.

      Found and fixed by Putta Khunchalee.

#define TEST_CONN_ADDRESS_2     "127.0.0.2"

#define TEST_CONN_PORT          (12345)

#define TEST_CONN_ADDRESS_PORT  "127.0.0.1:12345"

#define TEST_CONN_FD_INIT 50

#define TEST_CONN_FD_INIT       0x10000

void test_conn_lookup_addr_helper(const char *address,

                                  int family, tor_addr_t *addr);