ci: update GolangCI configurations and GitHub workflow integration

- Update golangci-lint action from v5 to v7
- Specify version v2.0 for golangci-lint in GitHub workflow
- Add `version: "2"` to `.golangci.yml`
- Replace `enable-all` and `disable-all` with `default: none` in `.golangci.yml`
- Remove specific linters (`gofmt`, `goimports`, `gosimple`, `stylecheck`, `typecheck`) from `.golangci.yml`
- Add linter exclusions and presets to `.golangci.yml`
- Add formatter configurations for `gofmt` and `goimports` in `.golangci.yml`
- Remove `run: timeout: 3m` from `.golangci.yml`

Signed-off-by: appleboy <[email protected]>

refactor: refactor template methods and structs for improved readability

- Refactor `buildTemplate` method to separate template creation and delimiter setting for better readability
- Reformat `AddFromStringsFuncsWithOptions` and `AddFromFilesFuncsWithOptions` functions to use multi-line parameters for improved readability
- Group related struct fields in `templateBuilder` initialization for better code organization
- Convert type definitions to a single `type` block in `multitemplate.go` for better structure
- Reformat `AddFromStringsFuncsWithOptions` and `AddFromFilesFuncsWithOptions` methods in `multitemplate.go` to use multi-line parameters and template creation for better readability
- Update `Renderer` interface to use multi-line parameters for `AddFromStringsFuncsWithOptions` and `AddFromFilesFuncsWithOptions` methods for improved readability

Signed-off-by: Bo-Yi Wu <[email protected]>

ci: expand OS support in GitHub Actions workflow for Go (#67)

* ci: expand OS support in GitHub Actions workflow for Go

- Add macOS and Windows to the OS matrix in the GitHub Actions workflow for Go
- Specify Go build cache locations for Windows and macOS

Signed-off-by: appleboy <[email protected]>

* ci: improve CI workflow and API integration

- Remove Windows build job from GitHub Actions workflow

Signed-off-by: appleboy <[email protected]>

---------

Signed-off-by: appleboy <[email protected]>

chore: update indirect dependencies in go.mod

- Update several indirect dependencies in `go.mod`, including `sonic`, `base64x`, `iasm`, `validator`, `go-toml`, `arch`, `crypto`, `net`, `sys`, `text`, and `protobuf` to newer versions.

Signed-off-by: Bo-Yi Wu <[email protected]>

feat(embed): Implement template loading from embedded filesystem (#48)

* Implement template loading from fs.FS

* Use os.DirFS instead of embed.FS for tests

* Remove go versions 1.14 and 1.15 from test workflow

---------

Co-authored-by: Bo-Yi Wu <[email protected]>