RepairService test fails on non-canonical signature

[dnut]

Description

273/306 shred_collector.repair_service.test.RepairService sends repair request to gossip peer...FAIL (TimeSkew)
/opt/hostedtoolcache/zig/0.13.0/x64/lib/std/crypto/25519/scalar.zig:35:9: 0x39fe5af in rejectNonCanonical (test)
        return error.NonCanonical;
        ^
/opt/hostedtoolcache/zig/0.13.0/x64/lib/std/crypto/25519/ed25519.zig:157:13: 0x38d3dec in init (test)
            try Curve.scalar.rejectNonCanonical(s);
            ^
/opt/hostedtoolcache/zig/0.13.0/x64/lib/std/crypto/25519/ed25519.zig:218:13: 0x3990515 in verifier (test)
            return Verifier.init(self, public_key);
            ^
/home/runner/work/sig/sig/src/core/signature.zig:43:9: 0x385bd4d in verifier (test)
        return signature.verifier(Ed25519.PublicKey.fromBytes(pubkey.data) catch unreachable);
        ^
/home/runner/work/sig/sig/src/shred_collector/repair_message.zig:171:21: 0x3687224 in verify (test)
                    return error.InvalidSignature;
                    ^
/opt/hostedtoolcache/zig/0.13.0/x64/lib/std/crypto/25519/scalar.zig:35:9: 0x39fe5af in rejectNonCanonical (test)
        return error.NonCanonical;
        ^
/opt/hostedtoolcache/zig/0.13.0/x64/lib/std/crypto/25519/ed25519.zig:157:13: 0x38d3dec in init (test)
            try Curve.scalar.rejectNonCanonical(s);
            ^
/opt/hostedtoolcache/zig/0.13.0/x64/lib/std/crypto/25519/ed25519.zig:218:13: 0x3990515 in verifier (test)
            return Verifier.init(self, public_key);
            ^
/home/runner/work/sig/sig/src/core/signature.zig:43:9: 0x385bd4d in verifier (test)
        return signature.verifier(Ed25519.PublicKey.fromBytes(pubkey.data) catch unreachable);
        ^
/home/runner/work/sig/sig/src/shred_collector/repair_message.zig:171:21: 0x36876cc in verify (test)
                    return error.InvalidSignature;
                    ^
/opt/hostedtoolcache/zig/0.13.0/x64/lib/std/crypto/25519/scalar.zig:35:9: 0x39fe5af in rejectNonCanonical (test)
        return error.NonCanonical;
        ^
/opt/hostedtoolcache/zig/0.13.0/x64/lib/std/crypto/25519/ed25519.zig:157:13: 0x38d3dec in init (test)
            try Curve.scalar.rejectNonCanonical(s);
            ^
/opt/hostedtoolcache/zig/0.13.0/x64/lib/std/crypto/25519/ed25519.zig:218:13: 0x3990515 in verifier (test)
            return Verifier.init(self, public_key);
            ^
/home/runner/work/sig/sig/src/core/signature.zig:43:9: 0x385bd4d in verifier (test)
        return signature.verifier(Ed25519.PublicKey.fromBytes(pubkey.data) catch unreachable);
        ^
/home/runner/work/sig/sig/src/shred_collector/repair_message.zig:171:21: 0x3687b74 in verify (test)
                    return error.InvalidSignature;
                    ^
/opt/hostedtoolcache/zig/0.13.0/x64/lib/std/crypto/25519/scalar.zig:35:9: 0x39fe5af in rejectNonCanonical (test)
        return error.NonCanonical;
        ^
/opt/hostedtoolcache/zig/0.13.0/x64/lib/std/crypto/25519/ed25519.zig:157:13: 0x38d3dec in init (test)
            try Curve.scalar.rejectNonCanonical(s);
            ^
/opt/hostedtoolcache/zig/0.13.0/x64/lib/std/crypto/25519/ed25519.zig:218:13: 0x3990515 in verifier (test)
            return Verifier.init(self, public_key);
            ^
/home/runner/work/sig/sig/src/core/signature.zig:43:9: 0x385bd4d in verifier (test)
        return signature.verifier(Ed25519.PublicKey.fromBytes(pubkey.data) catch unreachable);
        ^
/home/runner/work/sig/sig/src/shred_collector/repair_message.zig:171:21: 0x368800d in verify (test)
                    return error.InvalidSignature;
                    ^
/home/runner/work/sig/sig/src/shred_collector/repair_message.zig:163:21: 0x36875bb in verify (test)
                    return error.TimeSkew;
                    ^
/home/runner/work/sig/sig/src/shred_collector/repair_service.zig:497:5: 0x368e948 in test.RepairService sends repair request to gossip peer (test)
    try msg.verify(buf[0..160], Pubkey.fromPublicKey(&peer_keypair.public_key), @intCast(std.time.milliTimestamp()));
    ^

How to Reproduce the Bug

I've seen this twice in the github workflow. I think both were in the kcov step, at least this one was:

https://github.com/Syndica/sig/actions/runs/11131745666/job/30934025449?pr=278

Additional Context

No response