Bump coursier/setup-action from 1 to 2

Bumps [coursier/setup-action](https://github.com/coursier/setup-action) from 1 to 2.
- [Release notes](https://github.com/coursier/setup-action/releases)
- [Commits](coursier/setup-action@v1...v2)

---
updated-dependencies:
- dependency-name: coursier/setup-action
  dependency-version: '2'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/site.yml

@@ -24,7 +24,7 @@ jobs:
     - name: Cache scala dependencies
       uses: coursier/cache-action@v6
     - name: Setup Action
-      uses: coursier/setup-action@v1
+      uses: coursier/setup-action@v2
       with:
         jvm: temurin:21
         apps: sbt
@@ -46,7 +46,7 @@ jobs:
     - name: Cache scala dependencies
       uses: coursier/cache-action@v6
     - name: Setup Action
-      uses: coursier/setup-action@v1
+      uses: coursier/setup-action@v2
       with:
         jvm: temurin:21
         apps: sbt
@@ -72,7 +72,7 @@ jobs:
     - name: Cache scala dependencies
       uses: coursier/cache-action@v6
     - name: Setup Action
-      uses: coursier/setup-action@v1
+      uses: coursier/setup-action@v2
       with:
         jvm: temurin:21
         apps: sbt