chore(deps): pin python docker tag to 63a4c7f

Author: renovate[bot]

Dockerfile

@@ -1,5 +1,5 @@
 # Build stage
-FROM python:3.14-slim AS builder
+FROM python:3.14-slim@sha256:63a4c7f612a00f92042cbdcc7cdc6a306f38485af0a200b9c89de7d9b1607d15 AS builder
 
 # Install build dependencies
 RUN apt-get update && apt-get install -y --no-install-recommends \
@@ -15,7 +15,7 @@ COPY requirements.txt /tmp/
 RUN pip install --no-cache-dir -r /tmp/requirements.txt
 
 # Runtime stage
-FROM python:3.14-slim
+FROM python:3.14-slim@sha256:63a4c7f612a00f92042cbdcc7cdc6a306f38485af0a200b9c89de7d9b1607d15
 
 # OCI Labels
 LABEL org.opencontainers.image.title="Reddit ModLog Wiki Publisher" \