ci: adjust benchmarks

[radeksimko]

To address some recent failures and cancellations:

{
  "Status": "fail",
  "Diffs": [
    {
      "Status": "fail",
      "Package": "github.com/hashicorp/terraform-ls/internal/langserver/handlers",
      "Benchmark": "BenchmarkInitializeFolder_basic/local-single-module-no-provider-2",
      "Value": 28.653373
    }
  ],
  "Thresholds": {
    "Min": 29,
    "Max": 55
  }
}

https://github.com/hashicorp/terraform-ls/runs/6051484898?check_suite_focus=true

https://github.com/hashicorp/terraform-ls/runs/6071802295?check_suite_focus=true

[github-actions]

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