Fix sample warnings seen during workflow build. #109

Fix sample warnings seen during workflow build.

Usage Workflow file

10 warnings

Build samples: Text/ExtractTextPreservingStyleAndPositionInfo/ExtractTextPreservingStyleAndPositionInfo.cs#L60

Dereference of a possibly null reference.

Build samples: Text/ExtractTextPreservingStyleAndPositionInfo/ExtractTextPreservingStyleAndPositionInfo.cs#L71

Dereference of a possibly null reference.

Build samples: Text/ExtractTextPreservingStyleAndPositionInfo/ExtractTextPreservingStyleAndPositionInfo.cs#L75

Dereference of a possibly null reference.

Build samples: Text/ExtractTextPreservingStyleAndPositionInfo/ExtractTextPreservingStyleAndPositionInfo.cs#L75

Dereference of a possibly null reference.

Build samples: Text/ExtractTextPreservingStyleAndPositionInfo/ExtractTextPreservingStyleAndPositionInfo.cs#L78

Dereference of a possibly null reference.

Build samples: Text/ExtractTextPreservingStyleAndPositionInfo/ExtractTextPreservingStyleAndPositionInfo.cs#L78

Dereference of a possibly null reference.

Build samples: Text/ExtractTextPreservingStyleAndPositionInfo/ExtractTextPreservingStyleAndPositionInfo.cs#L80

Dereference of a possibly null reference.

Build samples: Text/ExtractTextPreservingStyleAndPositionInfo/ExtractTextPreservingStyleAndPositionInfo.cs#L60

Dereference of a possibly null reference.

Build samples: Text/ExtractTextPreservingStyleAndPositionInfo/ExtractTextPreservingStyleAndPositionInfo.cs#L71

Dereference of a possibly null reference.

Build samples: Text/ExtractTextPreservingStyleAndPositionInfo/ExtractTextPreservingStyleAndPositionInfo.cs#L75

Dereference of a possibly null reference.

succeeded Mar 20, 2024 in 33s