build(deps): bump actions/download-artifact in /.github/workflows

Bumps [actions/download-artifact](https://github.com/actions/download-artifact) from 2 to 4.1.7.
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](actions/download-artifact@v2...v4.1.7)

---
updated-dependencies:
- dependency-name: actions/download-artifact
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>
Signed-off-by: Colin Walters <[email protected]>

.github/workflows/bootc.yml

@@ -41,7 +41,7 @@ jobs:
       - name: Build
         run: cd bootc && make test-bin-archive
       - name: Upload binary
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: bootc-c9s.tar.zst
           path: bootc/target/bootc.tar.zst
@@ -51,7 +51,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Download
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4.1.7
         with:
           name: bootc-c9s.tar.zst
       - name: Install

.github/workflows/rust.yml

@@ -57,7 +57,7 @@ jobs:
       - name: Build
         run: cargo build --release --features=internal-testing-api
       - name: Upload binary
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v4
         with:
           name: ostree-ext-cli
           path: target/release/ostree-ext-cli
@@ -105,7 +105,7 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v3
       - name: Download ostree-ext-cli
-        uses: actions/download-artifact@v2
+        uses: actions/download-artifact@v4.1.7
         with:
           name: ostree-ext-cli
       - name: Install
@@ -121,7 +121,7 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v3
       - name: Download ostree-ext-cli
-        uses: actions/download-artifact@v2
+        uses: actions/download-artifact@v4.1.7
         with:
           name: ostree-ext-cli
       - name: Install
@@ -139,7 +139,7 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v3
       - name: Download
-        uses: actions/download-artifact@v2
+        uses: actions/download-artifact@v4.1.7
         with:
           name: ostree-ext-cli
       - name: Install
@@ -159,7 +159,7 @@ jobs:
           repository: coreos/coreos-layering-examples
           path: coreos-layering-examples
       - name: Download
-        uses: actions/download-artifact@v2
+        uses: actions/download-artifact@v4.1.7
         with:
           name: ostree-ext-cli
       - name: Integration tests