Update picrust2-env.yaml dependency versions

Hoping this will fix issues with Mac installs.
dendropy 4.5.2 -> 5.0.1
gappa >=0.8.0,<=0.8.5 -> >=0.8.0
hmmer >=3.1b2,<=3.2.1 -> >=3.1b2
sepp 4.4.0 -> 4.5.5

picrust2-env.yaml

@@ -10,12 +10,13 @@ channels:
 dependencies:
 - biom-format >=2.1.10
 - cython
-- epa-ng=0.3.8
-- dendropy=4.5.2
-- gappa >=0.8.0,<=0.8.5
+- epa-ng =0.3.8
+- ete3 =3.1.3
+- dendropy =5.0.1
+- gappa >=0.8.0
 - glpk >=4.65
 - h5py >=2.10.0
-- hmmer >=3.1b2,<=3.2.1
+- hmmer >=3.1b2
 - jinja2 >=2.11.3
 - joblib >=1.0.1
 - numpy >=1.19.5
@@ -26,5 +27,4 @@ dependencies:
 - r-base >=3.5.1
 - r-castor >=1.7.2
 - scipy >=1.2.1
-- sepp=4.4.0
-- ete3=3.1.3
+- sepp =4.5.5