chore: add git cliff

CHANGELOG.md

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+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+<!-- generated by git-cliff -->

cliff.toml

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+# Configuration file for [`git-cliff`](https://github.com/orhun/git-cliff)
+# See https://git-cliff.org/docs/configuration
+
+[changelog]
+header = """
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).\n
+"""
+# https://tera.netlify.app/docs/#introduction
+body = """
+{% if version %}\
+    ## [{{ version | trim_start_matches(pat="v") }}](https://github.com/alloy-rs/eips
+/releases/tag/v{{ version | trim_start_matches(pat="v") }}) - {{ timestamp | date(format="%Y-%m-%d") }}
+{% endif %}\
+{% for group, commits in commits | group_by(attribute="group") %}
+    ### {{ group | title }}
+    {% for commit in commits %}
+        - {% if commit.scope %}[{{ commit.scope }}] {% endif %}{{ commit.message | upper_first | split(pat="\\n") | first }}\
+    {% endfor %}
+{% endfor %}\n
+"""
+trim = true
+footer = "<!-- generated by git-cliff -->"
+
+[git]
+conventional_commits = true
+filter_unconventional = false
+commit_preprocessors = [
+    { pattern = '#(\d+)', replace = "[#$1](https://github.com/alloy-rs/eips/issues/$1)" },
+]
+commit_parsers = [
+    { message = "^[Ff]eat", group = "Features" },
+    { message = "^[Ff]ix", group = "Bug Fixes" },
+    { message = "^[Dd]oc", group = "Documentation" },
+    { message = ".*\\b([Dd]eps|[Dd]ependencies|[Bb]ump)\\b", group = "Dependencies" },
+    { message = "^[Pp]erf", group = "Performance" },
+    { message = "^[Rr]efactor", group = "Refactor" },
+    { message = ".*\\b([Ss]tyle|[Ff]mt|[Ff]ormat)\\b", group = "Styling" },
+    { message = "^[Tt]est", group = "Testing" },
+    { message = "^[Cc]hore", group = "Miscellaneous Tasks" },
+
+    { message = ".*", group = "Other" },
+]
+protect_breaking_commits = false
+filter_commits = false
+tag_pattern = "v[0-9]*"
+skip_tags = "beta|alpha"
+ignore_tags = "rc"
+sort_commits = "newest"