ci: integrate UPX compression and link-time optimizations for smaller MSI

[0xarchit]

Description:
This PR optimizes the release pipeline to significantly reduce the final installer size by introducing binary compression and advanced linker flags.

Key Changes:

• UPX Compression: Added upx --best --lzma to the release workflow. The main executable is now compressed before being bundled into the MSI, reducing the footprint of the core
  binary.
• Linker Optimizations: Updated RUSTFLAGS to include:
  • /OPT:REF: Eliminates functions and data that are never referenced.
  • /OPT:ICF: Performs Identical COMDAT Folding (removes redundant code).
  • /INCREMENTAL:NO: Ensures a clean, non-incremental production build.

Benefits:

• Smaller MSI Size: Direct reduction in user download time and bandwidth usage.
• Hardened Release: More efficient binary structure via optimized link-time transformations.

[0xarchit]

changes reviewed