Change image tag to latest (#871)

* Change image tag to latest

* Use built sha

* Fixup

* Replace w/ latest

Author: hmstepanek

.github/workflows/tests.yml

@@ -119,7 +119,7 @@ jobs:
 
     runs-on: ubuntu-20.04
     container:
-      image: ghcr.io/newrelic/newrelic-python-agent-ci:sha-52dab3b91d91005b8ef657fba3fe08a5fbfa23b1
+      image: ghcr.io/newrelic/newrelic-python-agent-ci:latest
       options: >-
         --add-host=host.docker.internal:host-gateway
     timeout-minutes: 30
@@ -164,7 +164,7 @@ jobs:
 
     runs-on: ubuntu-20.04
     container:
-      image: ghcr.io/newrelic/newrelic-python-agent-ci:sha-52dab3b91d91005b8ef657fba3fe08a5fbfa23b1
+      image: ghcr.io/newrelic/newrelic-python-agent-ci:latest
       options: >-
         --add-host=host.docker.internal:host-gateway
     timeout-minutes: 30
@@ -209,7 +209,7 @@ jobs:
 
     runs-on: ubuntu-20.04
     container:
-      image: ghcr.io/newrelic/newrelic-python-agent-ci:sha-52dab3b91d91005b8ef657fba3fe08a5fbfa23b1
+      image: ghcr.io/newrelic/newrelic-python-agent-ci:latest
       options: >-
         --add-host=host.docker.internal:host-gateway
     timeout-minutes: 30
@@ -269,7 +269,7 @@ jobs:
 
     runs-on: ubuntu-20.04
     container:
-      image: ghcr.io/newrelic/newrelic-python-agent-ci:sha-52dab3b91d91005b8ef657fba3fe08a5fbfa23b1
+      image: ghcr.io/newrelic/newrelic-python-agent-ci:latest
       options: >-
         --add-host=host.docker.internal:host-gateway
     timeout-minutes: 30
@@ -332,7 +332,7 @@ jobs:
 
     runs-on: ubuntu-20.04
     container:
-      image: ghcr.io/newrelic/newrelic-python-agent-ci:sha-52dab3b91d91005b8ef657fba3fe08a5fbfa23b1
+      image: ghcr.io/newrelic/newrelic-python-agent-ci:latest
       options: >-
         --add-host=host.docker.internal:host-gateway
     timeout-minutes: 30
@@ -395,7 +395,7 @@ jobs:
 
     runs-on: ubuntu-20.04
     container:
-      image: ghcr.io/newrelic/newrelic-python-agent-ci:sha-52dab3b91d91005b8ef657fba3fe08a5fbfa23b1
+      image: ghcr.io/newrelic/newrelic-python-agent-ci:latest
       options: >-
         --add-host=host.docker.internal:host-gateway
     timeout-minutes: 30
@@ -453,7 +453,7 @@ jobs:
 
     runs-on: ubuntu-20.04
     container:
-      image: ghcr.io/newrelic/newrelic-python-agent-ci:sha-52dab3b91d91005b8ef657fba3fe08a5fbfa23b1
+      image: ghcr.io/newrelic/newrelic-python-agent-ci:latest
       options: >-
         --add-host=host.docker.internal:host-gateway
     timeout-minutes: 30
@@ -513,7 +513,7 @@ jobs:
 
     runs-on: ubuntu-20.04
     container:
-      image: ghcr.io/newrelic/newrelic-python-agent-ci:sha-52dab3b91d91005b8ef657fba3fe08a5fbfa23b1
+      image: ghcr.io/newrelic/newrelic-python-agent-ci:latest
       options: >-
         --add-host=host.docker.internal:host-gateway
     timeout-minutes: 30
@@ -571,7 +571,7 @@ jobs:
 
     runs-on: ubuntu-20.04
     container:
-      image: ghcr.io/newrelic/newrelic-python-agent-ci:sha-52dab3b91d91005b8ef657fba3fe08a5fbfa23b1
+      image: ghcr.io/newrelic/newrelic-python-agent-ci:latest
       options: >-
         --add-host=host.docker.internal:host-gateway
     timeout-minutes: 30
@@ -630,7 +630,7 @@ jobs:
 
     runs-on: ubuntu-20.04
     container:
-      image: ghcr.io/newrelic/newrelic-python-agent-ci:sha-52dab3b91d91005b8ef657fba3fe08a5fbfa23b1
+      image: ghcr.io/newrelic/newrelic-python-agent-ci:latest
       options: >-
         --add-host=host.docker.internal:host-gateway
     timeout-minutes: 30
@@ -700,7 +700,7 @@ jobs:
 
     runs-on: ubuntu-20.04
     container:
-      image: ghcr.io/newrelic/newrelic-python-agent-ci:sha-52dab3b91d91005b8ef657fba3fe08a5fbfa23b1
+      image: ghcr.io/newrelic/newrelic-python-agent-ci:latest
       options: >-
         --add-host=host.docker.internal:host-gateway
     timeout-minutes: 30
@@ -758,7 +758,7 @@ jobs:
 
     runs-on: ubuntu-20.04
     container:
-      image: ghcr.io/newrelic/newrelic-python-agent-ci:sha-52dab3b91d91005b8ef657fba3fe08a5fbfa23b1
+      image: ghcr.io/newrelic/newrelic-python-agent-ci:latest
       options: >-
         --add-host=host.docker.internal:host-gateway
     timeout-minutes: 30
@@ -818,7 +818,7 @@ jobs:
 
     runs-on: ubuntu-20.04
     container:
-      image: ghcr.io/newrelic/newrelic-python-agent-ci:sha-52dab3b91d91005b8ef657fba3fe08a5fbfa23b1
+      image: ghcr.io/newrelic/newrelic-python-agent-ci:latest
       options: >-
         --add-host=host.docker.internal:host-gateway
     timeout-minutes: 30
@@ -879,7 +879,7 @@ jobs:
 
     runs-on: ubuntu-20.04
     container:
-      image: ghcr.io/newrelic/newrelic-python-agent-ci:sha-52dab3b91d91005b8ef657fba3fe08a5fbfa23b1
+      image: ghcr.io/newrelic/newrelic-python-agent-ci:latest
       options: >-
         --add-host=host.docker.internal:host-gateway
     timeout-minutes: 30