chore(policy): remove policy to uses common .github files

[sc979]

Description

Remove hardcoded security policy and use the one available globally on centreon/.github repo

Fixes # (issue)

Type of change

• [ ] Patch fixing an issue (non-breaking change)
• [ ] New functionality (non-breaking change)
• [ ] Breaking change (patch or feature) that might cause side effects breaking part of the Software

Target serie

• [ ] 21.04.x
• [ ] 21.10.x
• [ ] 22.04.x
• [x] 22.10.x (master)

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0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

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