Avoid ongoing condapocalypse by updating Travis's tool versions
Avoid ongoing condapocalypse by updating Travis's tool versions

The broken-openssl/libcrypto condapocalypse (see conda/conda#9905,
bioconda/bioconda-recipes#24199, et al) has now caught up with samtools
et al 1.9. Update pinnings to (at least) the current version, 1.11.

Remove the ncurses pinning, which has been unnecessary since
bioconda/bioconda-recipes#17273. Instead pin the blas variant as
the openblas variant that bcftools 1.11(+GSL) was built against.

pysam-developers/pysam,pysam-developers/pysam,pysam-developers/pysam,pysam-developers/pysam