ci: add dev Dockerfile

Dockerfile

@@ -0,0 +1,21 @@
+# syntax=docker/dockerfile:1
+FROM golang:1.23
+
+RUN apt-get update && apt-get install -y \
+    build-essential \
+    jq \
+    && rm -rf /var/lib/apt/lists/*
+
+RUN mkdir fswatch/ && \
+    curl -sL "$(curl -sL \
+    -H 'Accept: application/vnd.github+json' \
+    -H 'X-GitHub-Api-Version: 2022-11-28' \
+    https://api.github.com/repos/emcrisostomo/fswatch/releases/latest | jq -r '.assets[0].browser_download_url')" | tar -xz -C fswatch --strip-components=1 && \
+    cd fswatch/ && \
+    ./configure && \
+    make -j"$(getconf _NPROCESSORS_ONLN)" && \
+    make install && \
+    cd .. && \
+    rm -Rf fswatch/
+
+ENV LD_LIBRARY_PATH=/usr/local/lib