[swift-driver] Simplify the early_swift_driver job

* Install the early_swift_driver build in `BuildRoot` for consistency.
* Use `gha-upload-tar-artifact` to skip the tar step.
* Remove unneeded actions in the early_swift_driver job.

Author: Steelskin

.github/workflows/swift-toolchain.yml

@@ -711,35 +711,6 @@ jobs:
     name: ${{ matrix.os }} ${{ matrix.arch }} Early Swift Driver
 
     steps:
-      - uses: actions/download-artifact@v4
-        with:
-          name: sqlite-${{ matrix.os }}-${{ matrix.arch }}-${{ inputs.swift_toolchain_sqlite_version }}
-          path: ${{ github.workspace }}/BuildRoot/Library/sqlite-${{ inputs.swift_toolchain_sqlite_version }}/usr
-
-      - uses: actions/checkout@v4
-        with:
-          repository: swiftlang/swift-llbuild
-          ref: ${{ inputs.swift_llbuild_revision }}
-          path: ${{ github.workspace }}/SourceCache/swift-llbuild
-          show-progress: false
-      - uses: actions/checkout@v4
-        with:
-          repository: swiftlang/swift-tools-support-core
-          ref: ${{ inputs.swift_tools_support_core_revision }}
-          path: ${{ github.workspace }}/SourceCache/swift-tools-support-core
-          show-progress: false
-      - uses: actions/checkout@v4
-        with:
-          repository: apple/swift-argument-parser
-          ref: ${{ inputs.swift_argument_parser_revision }}
-          path: ${{ github.workspace }}/SourceCache/swift-argument-parser
-          show-progress: false
-      - uses: actions/checkout@v4
-        with:
-          repository: jpsim/Yams
-          ref: ${{ inputs.yams_revision }}
-          path: ${{ github.workspace }}/SourceCache/Yams
-          show-progress: false
       - uses: actions/checkout@v4
         with:
           repository: swiftlang/swift-driver
@@ -792,7 +763,7 @@ jobs:
           # The Swift compiler expects a specific folder name for the early swift-driver build.
           # TODO: Make this configurable upstream so we don't have to hardcode it here.
           $InstallFolderName = "earlyswiftdriver-${PlatformName}-${Cpu}"
-          $InstallBinDir = Join-Path "${{ github.workspace }}" "BinaryCache" $InstallFolderName "release" "bin"
+          $InstallBinDir = Join-Path "${{ github.workspace }}" "BuildRoot" $InstallFolderName "release" "bin"
 
           # Create the target folder.
           New-Item -ItemType Directory -Path $InstallBinDir -Force
@@ -805,15 +776,10 @@ jobs:
               Copy-Item -Path "${SourceBinDir}/${binName}" -Destination $binPath -Force
           }
 
-          # Create an archive to preserve permissions.
-          tar -czf "${{ github.workspace }}/BinaryCache/early-swift-driver.tar.gz" `
-              -C "${{ github.workspace }}/BinaryCache" `
-              $InstallFolderName
-
-      - uses: actions/upload-artifact@v4
+      - uses: thebrowsercompany/gha-upload-tar-artifact@d8f9b9d463a319b5b65b273db0a4e12ab0b10e72 # main
         with:
           name: early-swift-driver-${{ matrix.os }}-${{ matrix.arch }}
-          path: ${{ github.workspace }}/BinaryCache/early-swift-driver.tar.gz
+          path: ${{ github.workspace }}/BuildRoot
 
   compilers:
     # TODO: Build this on macOS or make an equivalent Mac-only job