Document name input working on complete and update

Pairs with linear-release CLI extending --name support to the complete
and update commands (linear/linear-release#49). The action input map
already forwards `name` to the CLI, so no behavioral change is needed
here — just the description in action.yml and the corresponding row in
the README inputs table.

Author: RomainCscn

README.md

@@ -58,7 +58,7 @@ Once installed, run it from your AI agent with `/linear-release-setup` (or just
 | --------------- | -------- | -------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
 | `access_key`    | Yes      |          | Linear pipeline access key for authentication                                                                                                                                                                                 |
 | `command`       | No       | `sync`   | Command to run: `sync`, `complete`, or `update`                                                                                                                                                                               |
-| `name`          | No       |          | Custom release name for `sync`. Whenever `sync` is called with `name`, the value is applied to the targeted release — both newly created releases and existing ones get the provided name. Ignored (with warning) for `complete` and `update`.                |
+| `name`          | No       |          | Custom release name. For `sync`, the value is applied to the targeted release — both newly created releases and existing ones get the provided name. For `complete` and `update`, sets the name on the targeted release.                                          |
 | `version`       | No       |          | Release version identifier (alias: `release_version`)                                                                                                                                                                         |
 | `stage`         | No       |          | Deployment stage such as `staging` or `production` (required for `update`)                                                                                                                                                    |
 | `include_paths` | No       |          | Filter commits by file paths (comma-separated globs for monorepos)                                                                                                                                                            |

action.yml

@@ -15,7 +15,7 @@ inputs:
     required: false
     default: sync
   name:
-    description: Custom release name. Only used with the "sync" command.
+    description: Custom release name. Applied to the targeted release for "sync", "complete", and "update".
     required: false
   version:
     description: Release version identifier. Maps to CLI --release-version (e.g., "v1.2.3").

run.sh

@@ -44,10 +44,6 @@ if [[ "$COMMAND" == "update" && -z "${INPUT_STAGE:-}" ]]; then
   exit 1
 fi
 
-if [[ "$COMMAND" != "sync" && -n "${INPUT_NAME:-}" ]]; then
-  echo "::warning::name input is ignored when command is '$COMMAND' (only used with 'sync')"
-fi
-
 args=()
 [[ -n "${INPUT_NAME:-}" ]] && args+=("--name=${INPUT_NAME}")
 [[ -n "${INPUT_VERSION:-}" ]] && args+=("--release-version=${INPUT_VERSION}")