playbook/upgrader: remove useless playbook_sha256sum fact

ansible will exit if there is a sha256sum mismatch, no
need to check rc code
21 jobs for master in 0 seconds
Status Job ID Name Coverage
  External
passed ERP5.StandaloneDeploymentScriptTest-Debian.Buster

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passed ERP5.StandaloneDeploymentScriptTest-Debian.Buster.Master

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passed Wendelin.StandaloneDeploymentScriptTest-Debian.Bullseye

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passed Wendelin.StandaloneDeploymentScriptTest-Debian.Buster

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passed Wendelin.StandaloneDeploymentScriptTest-Debian.Buster.Master

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passed ERP5.StandaloneDeploymentScriptTest-Debian.Buster

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passed ERP5.StandaloneDeploymentScriptTest-Debian.Buster

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passed ERP5.StandaloneDeploymentScriptTest-Debian.Buster

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passed ERP5.StandaloneDeploymentScriptTest-Debian.Buster

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passed ERP5.StandaloneDeploymentScriptTest-Debian.Buster.Master

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passed ERP5.StandaloneDeploymentScriptTest-Debian.Buster.Master

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passed Wendelin.StandaloneDeploymentScriptTest-Debian.Bullseye

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passed Wendelin.StandaloneDeploymentScriptTest-Debian.Bullseye

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passed Wendelin.StandaloneDeploymentScriptTest-Debian.Buster

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passed Wendelin.StandaloneDeploymentScriptTest-Debian.Buster

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passed Wendelin.StandaloneDeploymentScriptTest-Debian.Buster

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passed Wendelin.StandaloneDeploymentScriptTest-Debian.Buster

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passed Wendelin.StandaloneDeploymentScriptTest-Debian.Buster.Master

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passed Wendelin.StandaloneDeploymentScriptTest-Debian.Buster.Master

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passed Wendelin.StandaloneDeploymentScriptTest-Debian.Buster.Master

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passed Wendelin.StandaloneDeploymentScriptTest-Debian.Buster.Master

06:47:26