Update GitHub deployment action to support multiple test servers (#328)

.github/PULL_REQUEST_TEMPLATE.md

@@ -8,5 +8,14 @@
 ### Steps for Testing
 <!-- Please describe in detail how the reviewer can test your changes. -->
 
+### Testserver States
+> [!NOTE]
+> These badges show the state of the test servers.
+> Green = Currently available, Red = Currently locked
+> Click on the badges to get to the test servers.
+
+[![](https://byob.yarr.is/ls1intum/Athena/athena-test1)](https://athena-test1.ase.cit.tum.de)
+[![](https://byob.yarr.is/ls1intum/Athena/athena-test2)](https://athena-test2.ase.cit.tum.de)
+
 ### Screenshots
-<!-- Add screenshots to demonstrate the changes in the UI of the playground etc. -->
+<!-- Add screenshots to demonstrate the changes in the UI of the playground etc. -->

.github/workflows/build.yml

@@ -1,6 +1,6 @@
 name: Build Docker Images
 
-# Build the Docker images for the the assessment module manager, the modules and the playground.
+# Build the Docker images for the assessment module manager, the modules and the playground.
 # Because the Python images depend on the athena Python package, the package is built first.
 
 on:
@@ -91,4 +91,4 @@ jobs:
             ATHENA_COMMIT_SHA=${{ github.event.pull_request.head.sha || github.sha }}
             ATHENA_PR_NUMBER=${{ github.event.pull_request.number }}
             ATHENA_PR_TITLE=${{ github.event.pull_request.title }}
-            ATHENA_PR_LAST_UPDATE=${{ github.event.pull_request.updated_at }}
+            ATHENA_PR_LAST_UPDATE=${{ github.event.pull_request.updated_at }}