Add rrdtool and dependencies to environment

Updated `requirements.txt` to include `rrdtool-bindings` and modified `Dockerfile` to install necessary rrdtool-related packages and development tools.

Dockerfile

@@ -13,6 +13,10 @@ RUN apt-get update && apt-get install -y \
     nano \
     openssl \
     dnsutils \
+    rrdtool \
+    gcc \
+    librrd-dev \
+    python3-dev \
     && rm -rf /var/lib/apt/lists/*
 
 # those are the really necessary packages

requirements.txt

@@ -11,6 +11,7 @@ pypng==0.20220715.0
 pytz==2024.2
 qrcode==8.0
 requests==2.32.3
+rrdtool-bindings==0.2.0
 sqlparse==0.5.3
 typing_extensions==4.12.2
 urllib3==2.3.0