revert: "build: Enable MSRV-aware resolver v3"#5428
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This reverts commit 117f9db. We intend to re-revert this shortly after investigating why CI didn't catch the issues with resolver v3. 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
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This enables Cargo's MSRV-aware resolver (v3) while maintaining our ability to test with Rust 1.75. ## Changes - Enable resolver v3 for MSRV-aware dependency resolution - Add sed patch in MSRV test job to temporarily downgrade to resolver v2 during testing ## Context Resolver v3 requires Rust 1.84+ to parse the configuration, but our library MSRV is 1.75. This creates a split MSRV situation: - Library MSRV: 1.75 (the code itself works with this version) - Development/build toolchain: 1.84+ (required for resolver v3) The CI workaround allows us to verify the library MSRV while benefiting from resolver v3's automatic dependency version management for development. Supersedes PRQL#5426, PRQL#5428, PRQL#5430 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
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Summary
Context
The resolver v3 upgrade seems to have caused CI issues that weren't detected when #5426 was merged. This temporary revert allows us to:
Test plan
🤖 Generated with Claude Code