node.js is broken on Alpine 3.12

```
/usr/bin/docker exec  b6b00889ce59b62d3fdddcf068b7ca6cd09606da324e33b7e3754c74054cb218 sh -c "cat /etc/*release | grep ^ID"
Error relocating /__e/node24_alpine/bin/node: pthread_getname_np: symbol not found
```
Add an override to the Linux build matrix to use checkout@v4
instead, and hope it isn't deprecated/removed as long as we need
to build for 3.12.

Author: geekosaur

.github/workflows/reusable-release.yml

@@ -143,6 +143,9 @@ jobs:
                     { image: "alpine:3.12"
                     , installCmd: "apk update && apk add"
                     , toolRequirements: "${{ needs.tool-output.outputs.apk_tools }}"
+                      # node.js is broken on 3.12
+                      # Error relocating /__e/node24_alpine/bin/node: pthread_getname_np: symbol not found
+                    , checkout_version: 4
                     , DISTRO: "Unknown"
                     , ARTIFACT: "x86_64-linux-alpine312"
                     , ADD_CABAL_ARGS: "--enable-split-sections"
@@ -168,7 +171,7 @@ jobs:
         with:
           cabal: ${{ env.CABAL_VERSION }}
 
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v${{ matrix.platform.checkout_version || 5 }}
         with:
           ref: ${{ matrix.branch }}
 
@@ -533,6 +536,8 @@ jobs:
                     { image: "alpine:3.12"
                     , installCmd: "apk update && apk add"
                     , toolRequirements: "${{ needs.tool-output.outputs.apk_tools }}"
+                      # as above
+                    , checkout_version: 4
                     , DISTRO: "Unknown"
                     , ARTIFACT: "x86_64-linux-alpine312"
                     },
@@ -551,7 +556,7 @@ jobs:
         run: |
           ${{ matrix.platform.installCmd }} curl bash git ${{ matrix.platform.toolRequirements }}
 
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v${{ matrix.platform.checkout_version || 5 }}
         with:
           ref: ${{ matrix.branch }}