fix: remove redundant component name from archive template (#18)

## Problem

Archive names are unnecessarily long and duplicate the component name:
```
protoc-gen-elixir-grpc_protoc-gen-elixir-grpc@v0.2.0_Darwin_arm64.tar.gz
                      ^^^^^^^^^^^^^^^^^^^^^^^^
                      duplicated!
```

## Root Cause

The GoReleaser archive template was using:
```yaml
{{ .Env.BUILD_COMPONENT }}_{{- .Version }}_...
```

Where:
- `BUILD_COMPONENT` = `protoc-gen-elixir-grpc`
- `.Version` = `protoc-gen-elixir-grpc@v0.2.0` (full monorepo tag)

This resulted in the component name appearing twice.

## Solution

Remove the `{{ .Env.BUILD_COMPONENT }}` prefix from the archive template
since `.Version` already contains the full monorepo tag format.

## Result

Cleaner archive names:
```
protoc-gen-elixir-grpc@v0.2.0_Darwin_arm64.tar.gz
protoc-gen-elixir-grpc@v0.2.0_Linux_x86_64.tar.gz
protoc-gen-elixir-grpc@v0.2.0_Windows_x86_64.tar.gz
```

## Testing

Validated locally with:
```bash
BUILD_COMPONENT="protoc-gen-elixir-grpc" goreleaser release --snapshot --skip=validate
```

Signed-off-by: Yordis Prieto <yordis.prieto@gmail.com>

Author: yordis

.github/goreleaser.yml

@@ -47,7 +47,6 @@ builds:
 archives:
   - id: default
     name_template: >-
-      {{ .Env.BUILD_COMPONENT }}_
       {{- .Version }}_
       {{- title .Os }}_
       {{- if eq .Arch "amd64" }}x86_64