ci: add Wasm FDW release workflow

[burmecia]

What kind of change does this PR introduce?

This PR is to add Wasm FDW release CI workflow. This workflow will be triggered by pushing tag like wasm_[project name]_[version], for example wasm_snowflake_fdw_v1.0.2.

What is the current behavior?

Currently there is no CI for Wasm FDW release.

What is the new behavior?

When pushing tag like wasm_snowflake_fdw_v1.0.2, the action will build the project Wasm file and create a release for it. This release will be used for Wasm FDW distribution, that is, we can use it in foreign server option like below:

create server snowflake_server
  foreign data wrapper wasm_wrapper
  options (
    fdw_package_url 'https://github.com/supabase/wrappers/releases/download/wasm_snowflake_fdw_v0.1.0/snowflake_fdw.wasm',
    fdw_package_name 'supabase:snowflake-fdw',
    fdw_package_version '0.1.0',
    ...
);

Additional context

N/A