Nathan Klick

Heroku has removed support for the `python-3.6.3` runtime. This PR moves the Heroku runtime to `python-3.6.14` which is currently supported.

Update FreezeTransactionBody Message

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### Problem In order to support network upgrade features within the context of a docker based deployment, we need to update the HAPI `FreezeTransactionBody` message and introduce the associated `FreezeType`...

[Snyk] Security upgrade @nestjs/core from 9.4.3 to 10.4.2

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 ### Snyk has created this PR to fix 1 vulnerabilities in the yarn dependencies of this project. #### Snyk changed the following file(s): - `notification-service/package.json` #### Note for [zero-installs](https://yarnpkg.com/features/zero-installs)...

[Snyk] Security upgrade @nestjs/platform-express from 9.4.3 to 10.4.2

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 ### Snyk has created this PR to fix 4 vulnerabilities in the yarn dependencies of this project. #### Snyk changed the following file(s): - `analytics-service/package.json` #### Note for [zero-installs](https://yarnpkg.com/features/zero-installs)...

[Snyk] Security upgrade gulp-copy from 4.0.1 to 5.0.0

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 ### Snyk has created this PR to fix 7 vulnerabilities in the yarn dependencies of this project. #### Snyk changed the following file(s): - `notification-service/package.json` #### Note for [zero-installs](https://yarnpkg.com/features/zero-installs)...