Attribute Errors for injection materials

[mekhlakapoor]

Describe the bug The metadata-service is broken because of attribute errors being raised by the tars integration. Because we aren't mapping injection materials from labtracks, there is no data there which is resulting in the attribute error

To Reproduce Steps to reproduce the behavior:

1. Go to http://aind-metadata-service/procedures/609105
2. Check logs and see error

Expected behavior In the tars integration code, make sure to use has_attr to ensure fields exist

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Desktop (please complete the following information):

• OS: [e.g. iOS]
• Browser [e.g. chrome, safari]
• Version [e.g. 22]

Smartphone (please complete the following information):

• Device: [e.g. iPhone6]
• OS: [e.g. iOS8.1]
• Browser [e.g. stock browser, safari]
• Version [e.g. 22]

Additional context Add any other context about the problem here.