Add new inputs to workflow summary and correct conditional statement.

[TrevorBenson]

Description

Use correct syntax to access workflow input variables for Docker Image workflow. Adds GUILD_DEPLOY_BRANCH and Push to GA Registry as the inverse of testing boolean.

Where should the reviewer start?

Check job summaries from the How has this been tested? section.

Motivation and context

Fixes a mistake in the if condition for the push and adds the details to the summary output.

Which issue it fixes?

N/A / CI

How has this been tested?

Jobs:

• Inputs: branch:alpha, testing=true
  • Step docker push latest not run
  • Summary Push to GA Registry False
• Inputs: branch:alpha, testing=false
  • Step docker push latest not run
  • Summary Push to GA Registry False
• Inputs: branch:master, testing=true
  • Step docker push latest not run
  • Summary Push to GA Registry False
• Inputs: branch:master, testing=false
  • Step docker push latest run
  • Summary Push to GA Registry True

Examples

Summary for a GA Image build:

Summary Details
Docker Image: docker.io/***/cardano-node:8.1.2
G_ACCOUNT: cardano-community
GUILD_DEPLOY_BRANCH: master
Push to GA Registry: true
CNVERSION: 8.1.2

Summary for a test Image build:

Summary Details
Docker Image: docker.io/***/cardano-node:8.1.2
G_ACCOUNT: cardano-community
GUILD_DEPLOY_BRANCH: alpha
Push to GA Registry: false
CNVERSION: 8.1.2