Allow invalid latest-snap.json previously uploaded

[posterzh]

Issue

• Link: https://github.com/NebraLtd/product-management/issues/70#issuecomment-1158447023
• Summary: Before taking the snapshot, 'create_snapshot.shtry to get the height from the previously uploadedlatest-snap.jsonfile. If it's invalid, taking the snapshot just fails. We need to allow taking the snapshot even if the previously uploadedlatest-snap.json` is invalid.

How Sliencing the jq error while extracting the height field from latest-snap.json since it might be invalid.

Screenshots

References

Checklist

• [ ] Tests added
• [ ] Cleaned up commit history (rebase!)
• [ ] Documentation added
• [ ] Thought about variable and method names

[sonarcloud[bot]]

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[posterzh]

Close in favor of https://github.com/NebraLtd/hm-block-tracker/pull/106