Add a space

(cherry picked from commit 347b0640da74692626127bd91568c582b4e525c7)

Author: armanbilge

src/main/scala/sbtghactions/GenerativePlugin.scala

@@ -703,7 +703,7 @@ ${indent(jobs.map(compileJob(_, sbt)).mkString("\n\n"), 1)}
               "actions",
               "download-artifact",
               "v3"),
-            name = Some(s"Download target directories (${v.mkString(",")})"),
+            name = Some(s"Download target directories (${v.mkString(", ")})"),
             params = Map(
               "name" -> s"target-$${{ matrix.os }}-$${{ matrix.java }}${v.mkString("-", "-", "")}"))
 

src/sbt-test/sbtghactions/check-and-regenerate/expected-ci.yml

@@ -112,7 +112,7 @@ jobs:
           github-token: ${{ secrets.GITHUB_TOKEN }}
           cache: sbt
 
-      - name: Download target directories (2.13.10,2.12.17,this)
+      - name: Download target directories (2.13.10, 2.12.17, this)
         uses: actions/download-artifact@v3
         with:
           name: target-${{ matrix.os }}-${{ matrix.java }}-2.13.10-2.12.17-this

src/sbt-test/sbtghactions/no-clean/.github/workflows/ci.yml

@@ -78,7 +78,7 @@ jobs:
           java-version: 8
           cache: sbt
 
-      - name: Download target directories (2.13.10,2.12.17)
+      - name: Download target directories (2.13.10, 2.12.17)
         uses: actions/download-artifact@v3
         with:
           name: target-${{ matrix.os }}-${{ matrix.java }}-2.13.10-2.12.17