`Setup rust toolchain` build step is flaky

[findepi]

Example failed run

...
Preparing to unpack .../protobuf-compiler_3.21.12-3_amd64.deb ...
Unpacking protobuf-compiler (3.21.12-3) ...
Setting up libprotobuf32:amd64 (3.21.12-3) ...
Setting up libprotobuf-lite32:amd64 (3.21.12-3) ...
Setting up libprotoc32:amd64 (3.21.12-3) ...
Setting up protobuf-compiler (3.21.12-3) ...
Setting up libprotobuf-dev:amd64 (3.21.12-3) ...
Processing triggers for libc-bin (2.36-9+deb12u8) ...
Run echo "Installing stable"
Installing stable
info: syncing channel updates for 'stable-x86_64-unknown-linux-gnu'
info: latest update on 2024-09-05, rust version 1.[81](https://github.com/findepi/datafusion/actions/runs/11140868762/job/30960575090#step:4:83).0 (eeb90cda1 2024-09-04)
info: downloading component 'cargo'
info: downloading component 'rust-std'
info: downloading component 'rustc'
info: installing component 'cargo'
info: installing component 'rust-std'
info: installing component 'rustc'

  stable-x86_64-unknown-linux-gnu installed - rustc 1.81.0 (eeb[90](https://github.com/findepi/datafusion/actions/runs/11140868762/job/30960575090#step:4:93)cda1 2024-09-04)

info: checking for self-update
info: using existing install for 'stable-x86_64-unknown-linux-gnu'
info: default toolchain set to 'stable-x86_64-unknown-linux-gnu'

  stable-x86_64-unknown-linux-gnu unchanged - rustc 1.81.0 (eeb90cda1 2024-09-04)

info: downloading component 'rustfmt'
error: component download failed for rustfmt-x86_64-unknown-linux-gnu: error decoding response body
Error: Process completed with exit code 1.

this was on a fork (https://github.com/findepi/datafusion/actions/runs/11140868762/job/30960575090), but the fork has no modifications pertaining the CI scaffolding