feat: add gruntwork-io/git-xargs (#20991)

[gruntwork-io/git-xargs](https://github.com/gruntwork-io/git-xargs): git-xargs is a command-line tool (CLI) for making updates across multiple Github repositories with a single command

pkgs/gruntwork-io/git-xargs/pkg.yaml

@@ -0,0 +1,6 @@
+packages:
+  - name: gruntwork-io/git-xargs@v0.1.11
+  - name: gruntwork-io/git-xargs
+    version: v0.1.6
+  - name: gruntwork-io/git-xargs
+    version: v0.0.1

pkgs/gruntwork-io/git-xargs/registry.yaml

@@ -0,0 +1,35 @@
+packages:
+  - type: github_release
+    repo_owner: gruntwork-io
+    repo_name: git-xargs
+    description: git-xargs is a command-line tool (CLI) for making updates across multiple Github repositories with a single command
+    version_constraint: "false"
+    version_overrides:
+      - version_constraint: semver("<= 0.0.1")
+        asset: git-xargs_{{.OS}}_{{.Arch}}
+        format: raw
+        windows_arm_emulation: true
+        checksum:
+          type: github_release
+          asset: SHA256SUMS
+          algorithm: sha256
+      - version_constraint: Version == "v0.0.2"
+        no_asset: true
+      - version_constraint: semver("<= 0.1.6")
+        asset: git-xargs_{{.OS}}_{{.Arch}}
+        format: raw
+        windows_arm_emulation: true
+        checksum:
+          type: github_release
+          asset: SHA256SUMS
+          algorithm: sha256
+      - version_constraint: semver("<= 0.1.8")
+        no_asset: true
+      - version_constraint: "true"
+        asset: git-xargs_{{.OS}}_{{.Arch}}
+        format: raw
+        windows_arm_emulation: true
+        checksum:
+          type: github_release
+          asset: SHA256SUMS
+          algorithm: sha256