Add determinate operation progress and ACKit repository workflow - #5390

Member 'CancelAllOperations' does not access instance data and can be marked as static (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1822)

Member 'ClearFinishedOperations' does not access instance data and can be marked as static (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1822)

Member 'ClearSuccessfulOperations' does not access instance data and can be marked as static (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1822)

Member 'RetryFailedOperations' does not access instance data and can be marked as static (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1822)

Use 'string.Contains' instead of 'string.IndexOf' to improve readability (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca2249)

Do not create tasks without passing a TaskScheduler (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca2008)

Member 'CancelAllOperations' does not access instance data and can be marked as static (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1822)

Member 'ClearFinishedOperations' does not access instance data and can be marked as static (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1822)

Member 'ClearSuccessfulOperations' does not access instance data and can be marked as static (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1822)

Member 'RetryFailedOperations' does not access instance data and can be marked as static (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1822)

Use 'string.Contains' instead of 'string.IndexOf' to improve readability (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca2249)

Do not create tasks without passing a TaskScheduler (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca2008)

Converting null literal or possible null value to non-nullable type.

Member 'ExplainInstallerHashMismatch' does not access instance data and can be marked as static (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1822)

Member 'ExplainNotApplicableUpdate' does not access instance data and can be marked as static (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1822)

Do not create tasks without passing a TaskScheduler (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca2008)

Member 'CancelAllOperations' does not access instance data and can be marked as static (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1822)

Member 'ClearFinishedOperations' does not access instance data and can be marked as static (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1822)

Member 'ClearSuccessfulOperations' does not access instance data and can be marked as static (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1822)

Member 'RetryFailedOperations' does not access instance data and can be marked as static (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1822)

Use 'string.Contains' instead of 'string.IndexOf' to improve readability (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca2249)