testing/vector: new aport

I don't know whether adm group still applies, but added anyway.

The failed log for skipped pkcs12 test:

--- TRY 4 STDERR:                                                  vector-core tls::settings::test::from_options_pkcs12 ---
thread 'tls::settings::test::from_options_pkcs12' panicked at 'Failed to load PKCS#12 certificate: ParsePkcs12 { source: ErrorStack([Error { code: 50856204, library: "digital envelope routines", function: "inner_evp_generic_fetch", reason: "unsupported", file: "crypto/evp/evp_fetch.c", line: 341, data: "Global default library context, Algorithm (RC2-40-CBC : 0), Properties ()" }]) }', lib/vector-core/src/tls/settings.rs:625:55
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

and it takes forever to build 😞