Improves version extraction in installation script

[fortran01]

---

name: Cross-platform Version Parsing Update
about: Updates version parsing logic in install script
title: "[PR] Improve version extraction for cross-platform compatibility"
labels: 'enhancement'
assignees: ''

Description

Updates the version extraction logic in the install script to use a more robust and cross-platform compatible approach using grep and sed. This change improves reliability when parsing GitHub release versions across different platforms and shell environments.

The new implementation:

• Uses a more reliable grep pattern that handles varying whitespace
• Simplifies the parsing chain to reduce potential points of failure
• Maintains compatibility across different Unix-like systems

Related issue: N/A

How to Test

1. Run the install script on different platforms (macOS, Linux) to verify version extraction:

   ./install.sh

2. Verify that the script correctly extracts the version number from GitHub releases
3. Check that the extracted version matches the latest release on the GitHub repository

Screenshots/Proof

The script successfully extracts version "x.y.z" from the GitHub API response:

Before: echo "$LATEST_RELEASE" | grep -o '"tag_name": "v[^"]*"' | cut -d'"' -f4 | sed 's/^v//'
After:  echo "$LATEST_RELEASE" | grep -o '"tag_name": *"v[^"]*"' | sed 's/.*"v\([^"]*\)".*/\1/'

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[louis030195]

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