Update dockerfile forl inting

Author: jfy133

Dockerfile

@@ -1,6 +1,7 @@
-FROM nfcore/base:1.7
+FROM nfcore/base:1.8
 
 LABEL description="Docker image containing all requirements for nf-core/eager pipeline"
 COPY environment.yml /
 RUN conda env create -f /environment.yml && conda clean -a
+RUN conda env export --name nf-core-eager-2.1.0dev > nf-core-eager-2.1.0dev.yml
 ENV PATH /opt/conda/envs/nf-core-eager-2.1.0dev/bin:$PATH