ci: update upload and download actions

- upload uses unique names for artifacts
- download merges unique artifacts to single loc

.github/workflows/CI.yml

@@ -183,7 +183,7 @@ jobs:
     - name: Upload artifact
       uses: actions/upload-artifact@v4
       with:
-        name: ${{ env.FPM_RELEASE }}
+        name: ${{ env.FPM_RELEASE }}-${{ matrix.os-arch }}
         path: ${{ env.FPM_RELEASE }}
 
 
@@ -197,9 +197,10 @@ jobs:
     - uses: actions/checkout@v4
 
     - name: Download Artifacts
-      uses: actions/download-artifact@v2
+      uses: actions/download-artifact@v4
       with:
-        path: ${{ github.workspace }} # This will download all files
+        path: ${{ github.workspace }}
+        merge-multiple: true
 
     - name: Get version (normal)
       if: github.event_name != 'release'
@@ -281,9 +282,10 @@ jobs:
       if: ${{ github.event_name == 'push' }}
 
     - name: Download Artifacts
-      uses: actions/download-artifact@v2
+      uses: actions/download-artifact@v4
       with:
-        path: ${{ github.workspace }} # This will download all files
+        path: ${{ github.workspace }}
+        merge-multiple: true
 
     - name: Normalize file names for continuous delivery
       if: ${{ github.event_name == 'push' }}

.github/workflows/release.yml

@@ -128,9 +128,10 @@ jobs:
       if: ${{ github.event_name == 'push' }}
 
     - name: Download Artifacts
-      uses: actions/download-artifact@v2
+      uses: actions/download-artifact@v4
       with:
-        path: ${{ github.workspace }} # This will download all files
+        path: ${{ github.workspace }}
+        merge-multiple: true
 
     - name: Normalize file names for continuous delivery
       if: ${{ github.event_name == 'push' }}