Update actions/checkout digest to c2d88d3 (#21601)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| actions/checkout | action | digest | `ff7abcd` -> `c2d88d3` |

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.github/workflows/release.yml

@@ -60,7 +60,7 @@ jobs:
     env:
       GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
     steps:
-      - uses: actions/checkout@ff7abcd0c3c05ccf6adc123a8cd1fd4fb30fb493
+      - uses: actions/checkout@c2d88d3ecc89a9ef08eebf45d9637801dcee7eb5
         with:
           persist-credentials: false
           submodules: recursive
@@ -123,7 +123,7 @@ jobs:
       GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       BUILD_MANIFEST_NAME: target/distrib/global-dist-manifest.json
     steps:
-      - uses: actions/checkout@ff7abcd0c3c05ccf6adc123a8cd1fd4fb30fb493
+      - uses: actions/checkout@c2d88d3ecc89a9ef08eebf45d9637801dcee7eb5
         with:
           persist-credentials: false
           submodules: recursive
@@ -174,7 +174,7 @@ jobs:
     outputs:
       val: ${{ steps.host.outputs.manifest }}
     steps:
-      - uses: actions/checkout@ff7abcd0c3c05ccf6adc123a8cd1fd4fb30fb493
+      - uses: actions/checkout@c2d88d3ecc89a9ef08eebf45d9637801dcee7eb5
         with:
           persist-credentials: false
           submodules: recursive
@@ -250,7 +250,7 @@ jobs:
     env:
       GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
     steps:
-      - uses: actions/checkout@ff7abcd0c3c05ccf6adc123a8cd1fd4fb30fb493
+      - uses: actions/checkout@c2d88d3ecc89a9ef08eebf45d9637801dcee7eb5
         with:
           persist-credentials: false
           submodules: recursive

dist-workspace.toml

@@ -66,7 +66,7 @@ install-path = ["$XDG_BIN_HOME/", "$XDG_DATA_HOME/../bin", "~/.local/bin"]
 global = "depot-ubuntu-latest-4"
 
 [dist.github-action-commits]
-"actions/checkout" = "ff7abcd0c3c05ccf6adc123a8cd1fd4fb30fb493" # v5.0.0
+"actions/checkout" = "c2d88d3ecc89a9ef08eebf45d9637801dcee7eb5" # v6.0.0
 "actions/upload-artifact" = "330a01c490aca151604b8cf639adc76d48f6c5d4" # v5.0.0
 "actions/download-artifact" = "018cc2cf5baa6db3ef3c5f8a56943fffe632ef53" # v6.0.0
 "actions/attest-build-provenance" = "c074443f1aee8d4aeeae555aebba3282517141b2" #v2.2.3