Draft: Transition: bindgen v0.70 -> v0.71

Addresses #105. Packages:

• oxigraph (Jonas)
• rust-aom-sys
• rust-apr (NNC)
• rust-bindgen (good for both unstable and exp)
• rust-bindgen-cli (good for both unstable and exp)
• rust-capstone-sys
• rust-cryptoki-sys (NNC)
• rust-devicemapper-sys (NNC)
• rust-drm-fourcc
• rust-drm-sys
• rust-exacl
• rust-fts-sys
• rust-input-sys
• rust-io-uring (issues with Linux 6.12, postponed)
• rust-laurel (Jonas)
• rust-leptonica-sys (Jonas)
• rust-libbpf-sys
• rust-libraw-rs-sys (NNC)
• rust-librocksdb-sys (newer version in vcs, postponed)
• rust-libspa-sys
• rust-libsqlite3-sys (NNC)
• rust-lmdb-master-sys
• rust-loopdev
• rust-nettle-sys
• rust-onig-sys (NNC)
• rust-openssl-sys (NNC)
• rust-parsec-service (conflicts with env_logger transition, postponed)
• rust-pipewire (NNC)
• rust-pipewire-sys
• rust-psa-crypto-sys (NNC)
• rust-rb-sys-build
• rust-selinux-sys (NNC)
• rust-subversion (FTBFS, only bump in VCS)
• rust-tesseract-sys (Jonas)
• rust-trivialdb (NNC)
• rust-tss-esapi-sys
• rust-xkbcommon-sys
• rust-zstd-sys (NNC)

NNC: needs no change