Update sbt-github-actions to 0.28.0 (#432)

* Update sbt-github-actions to 0.28.0

* Regenerate GitHub Actions workflow

Executed command: sbt githubWorkflowGenerate

Author: scala-steward

.github/workflows/ci.yml

@@ -91,7 +91,7 @@ jobs:
         uses: sbt/setup-sbt@v1
 
       - name: Download target directories (2.11.12)
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v5
         with:
           name: target-${{ matrix.os }}-2.11.12-${{ matrix.java }}
 
@@ -101,7 +101,7 @@ jobs:
           rm targets.tar
 
       - name: Download target directories (2.12.20)
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v5
         with:
           name: target-${{ matrix.os }}-2.12.20-${{ matrix.java }}
 
@@ -111,7 +111,7 @@ jobs:
           rm targets.tar
 
       - name: Download target directories (2.13.16)
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v5
         with:
           name: target-${{ matrix.os }}-2.13.16-${{ matrix.java }}
 
@@ -121,7 +121,7 @@ jobs:
           rm targets.tar
 
       - name: Download target directories (3.3.6)
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v5
         with:
           name: target-${{ matrix.os }}-3.3.6-${{ matrix.java }}
 

project/plugins.sbt

@@ -1,6 +1,6 @@
 addSbtPlugin("org.scoverage" % "sbt-scoverage" % "2.3.1")
 
-addSbtPlugin("com.github.sbt" % "sbt-github-actions" % "0.27.0")
+addSbtPlugin("com.github.sbt" % "sbt-github-actions" % "0.28.0")
 
 addSbtPlugin("com.github.sbt" % "sbt-ci-release" % "1.11.2")