Pin GitHub Actions to full-length commit SHAs - #246

GitHub.Models.BasicError: Resource not accessible by integration at Microsoft.Kiota.Http.HttpClientLibrary.HttpClientRequestAdapter.<ThrowIfFailedResponseAsync>d__28.MoveNext() + 0x4cc --- End of stack trace from previous location --- at Microsoft.Kiota.Http.HttpClientLibrary.HttpClientRequestAdapter.<SendAsync>d__20`1.MoveNext() + 0x5f1 --- End of stack trace from previous location --- at Microsoft.Kiota.Http.HttpClientLibrary.HttpClientRequestAdapter.<SendAsync>d__20`1.MoveNext() + 0x966 --- End of stack trace from previous location --- at GitHub.Repos.Item.Item.Pulls.Item.WithPull_numberItemRequestBuilder.<PatchAsync>d__19.MoveNext() + 0x68 --- End of stack trace from previous location --- at ProfanityFilter.Action.Clients.CustomGitHubClient.<>c__DisplayClass15_0.<<UpdatePullRequestAsync>b__0>d.MoveNext() + 0x60 --- End of stack trace from previous location --- at ProfanityFilter.Action.Clients.CustomGitHubClient.<TryClientRequestAsync>d__17.MoveNext() + 0x72