fix: Update metrics comment marker in GitHub Actions workflow

[TrueCarry]

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[github-actions]

📊 Performance Metrics

Performance Metrics (memory storage)

• CPU: 0.73s (4 cores) • Goroutines: 8 • Threads: 8
• Memory: 11.0MB heap • 34.5MB RAM • 25.0MB total • 239112 allocs
• GC: 6 cycles (0.60ms avg)
• FDs: 8/65536 (0.0%)

[github-actions]

📊 Performance Metrics

Performance Metrics (postgres storage)

• CPU: 0.85s (4 cores) • Goroutines: 10 • Threads: 7
• Memory: 17.6MB heap • 44.0MB RAM • 28.5MB total • 264971 allocs
• GC: 6 cycles (1.33ms avg)
• FDs: 34/65536 (0.1%)

[github-actions]

📊 Performance Metrics

Performance Metrics (cluster-valkey storage)

• CPU: 0.69s (4 cores) • Goroutines: 11 • Threads: 11
• Memory: 18.8MB heap • 44.6MB RAM • 31.1MB total • 297084 allocs
• GC: 7 cycles (0.31ms avg)
• FDs: 70/65536 (0.1%)

[github-actions]

📊 Performance Metrics

Performance Metrics (nginx storage)

• CPU: 0.08s (4 cores) • Goroutines: 6 • Threads: 6
• Memory: 1.1MB heap • 14.4MB RAM • 1.1MB total • 5987 allocs
• GC: 0 cycles (0ms avg)
• FDs: 13/65536 (0.0%)

[github-actions]

📊 Performance Metrics

Performance Metrics (dnsmasq storage)

• CPU: 0.25s (4 cores) • Goroutines: 11 • Threads: 7
• Memory: 4.9MB heap • 23.7MB RAM • 9.9MB total • 69501 allocs
• GC: 4 cycles (0.16ms avg)
• FDs: 59/65536 (0.1%)