chore(ci): Adding Playwright function

earthly/playwright/Earthfile

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+VERSION 0.8
+
+playwright-base:
+    FROM mcr.microsoft.com/playwright:v1.45.2-jammy
+    WORKDIR /wallet-automation
+
+    RUN apt-get update && apt-get install -y \
+        libnss3 libatk-bridge2.0-0 libdrm-dev libxkbcommon-dev libgbm-dev libasound-dev libatspi2.0-0 libxshmfence-dev postgresql-client xvfb python3.11 python3-pip && \
+        apt-get clean && \
+        rm -rf /var/lib/apt/lists/*
+
+SETUP:
+    FUNCTION
+    FROM +playwright-base

examples/playwright/Earthfile

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+VERSION 0.8
+
+IMPORT ../../earthly/playwright AS playwright-ci
+
+deps:
+    DO playwright-ci+SETUP
+
+    COPY package.json .
+    COPY package-lock.json .
+
+    RUN npm install
+    ENV PATH "/wallet-automation/node_modules/.bin:$PATH"