Original PR description

Currently, an error occurs when uploading a corrupted PDF as a quotation header or footer pages.

Step to produce:

- Install the ```sale_pdf_quote_builder``` module.
- Navigate to Sales / Products / Product Variants.
- Click on the Documents button, And create a new product document.
- Add a name and upload a corrupted pdf file.
- Click on 'Configure dynamic fields'.

```PdfReadError: Broken xref table```

An error occurs when the system tries to read file content through the PDF file reader at [1]. But the xref table of the pdf file is corrupted or broken.

Link [1]:  https://github.com/odoo/odoo/blob/1b1de50729c741d03b11d0fdc24cebf3df4b083a/addons/sale_pdf_quote_builder/utils.py#L27

To handle this issue, Add a try-except block to ensure that if an error occurs during the pdf file read it raises a validation error,

Sentry-5879869841

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