docs: try to release standalone binaries

[th7nder]

standalone binaries for parachain and instructions instead of k8s
things to consider:

• look up ldd polkadot on the released binaries by polkadot

➜  ~ wget https://github.com/paritytech/polkadot-sdk/releases/download/polkadot-stable2407-1/polkadot
[...]
=================================>] 106.65M   839KB/s    in 1m 44s

2024-08-24 22:52:26 (1.03 MB/s) - ‘polkadot’ saved [111830712/111830712]

➜  ~ ldd polkadot
        linux-vdso.so.1 (0x00007ffc0af72000)
        libstdc++.so.6 => /lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007fbc15f67000)
        libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007fbc15f47000)
        libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007fbc15f42000)
        libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007fbc15e5b000)
        libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007fbc15e56000)
        libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007fbc15c2b000)
        /lib64/ld-linux-x86-64.so.2 (0x00007fbc1c215000)

• there is no polkadot arm binary (Add ARM binaries to releases paritytech/polkadot-sdk#802), so we'll need to build it on our own without ROCKSDB_LIB_DIR

TODO:

• build polkadot,polka-storage-node on linux x86, macos arm
• put it into S3 + zombienet
• write instructions