fix: forester dockerfile (#1881)

Author: sergeytimoshin

forester/Dockerfile

@@ -1,9 +1,11 @@
 FROM rust:1.79 AS builder
 WORKDIR /app
-RUN apt-get update && apt install -y clang lld pkgconf libssl-dev
-ENV OPENSSL_DIR=/usr
-ENV OPENSSL_LIB_DIR=/usr/lib
-ENV OPENSSL_INCLUDE_DIR=/usr/include
+RUN apt-get update && apt-get install -y \
+    clang \
+    lld \
+    pkg-config \
+    libssl-dev \
+    && rm -rf /var/lib/apt/lists/*
 
 COPY .. .
 RUN cargo build --release --package forester