[PAGOPA-2017] fix: Update messageEncoding

[cap-ang]

List of Changes

• Fix encoding format

Motivation and Context

• when read from receipts-queue-receipt-waiting-4-gen and mapBizEventListString is done the function goes in error because the input is assumed to be without encoding and not in base64 as it is

stack-trace:

Caused by: it.gov.pagopa.receipt.pdf.generator.exception.BizEventNotValidException: [GenerateReceiptProcess] Error parsing the message coming from the queue
	at it.gov.pagopa.receipt.pdf.generator.GenerateReceiptPdf.getBizEventListFromMessage(GenerateReceiptPdf.java:230)
	at it.gov.pagopa.receipt.pdf.generator.GenerateReceiptPdf.processGenerateReceipt(GenerateReceiptPdf.java:126)

more info here

How Has This Been Tested?

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist:

• My change requires a change to the documentation.
• I have updated the documentation accordingly.

[github-actions]

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[github-actions]

Comment this PR with update_code to update openapi.json and format the code. Consider to use pre-commit to format the code.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud

[pasqualespica]

great