Add SHA input to trx-parser action

[NasAmin]

• Resolves Support a 'sha' property to override which commit to associate with #191
• Added a new SHA input to trx-parser action. This is useful in cases where trx-parser is used in a workflow triggered by events other than pull_request and push
• Many thanks to @flcdrg for contributing on Add SHA property #192

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This discussion was created from the release Add SHA input to trx-parser action.