Fix for BIO_get_mem_ptr and related regressions in OpenSSL
This bug in OpenSSL renders the Datovka app I maintain in Flathub unusable. And AFAIK it's not the only app. It's merged upstream, but I'm afraid that 1.1.1c release is still quite far away. So I wonder if it can be patched earlier in the SDK's openSSL. https://github.com/openssl/openssl/pull/8649