bump test dependencies

in order to fix vulnerabilities

requirements_tests.in

@@ -6,7 +6,12 @@ sphinx_rtd_theme
 
 numpy>=1.16
 matplotlib
-pillow>=8.1.1 # dependency of matplotlib, fix vulnerability
 
 pytest
 pytest-cov
+
+# fix vulnerabilities:
+py>=1.10.0
+pygments>=2.7.4
+urllib3>=1.26.4
+jinja2>=2.11.3

requirements_tests.txt

@@ -15,17 +15,17 @@ docutils==0.16            # via sphinx
 idna==2.10                # via requests
 imagesize==1.2.0          # via sphinx
 importlib-metadata==1.5.0  # via pluggy, pytest
-jinja2==2.11.2            # via sphinx
+jinja2==2.11.3            # via -r requirements_tests.in, sphinx
 kiwisolver==1.3.1         # via matplotlib
 markupsafe==1.1.1         # via jinja2
 matplotlib==3.3.3         # via -r requirements_tests.in
 more-itertools==8.2.0     # via pytest
 numpy==1.18.1             # via -r requirements_tests.in, matplotlib
 packaging==20.3           # via pytest, sphinx
-pillow==8.1.2             # via -r requirements_tests.in, matplotlib
+pillow==8.1.2             # via matplotlib
 pluggy==0.13.1            # via pytest
-py==1.8.1                 # via pytest
-pygments==2.6.1           # via sphinx
+py==1.10.0                # via -r requirements_tests.in, pytest
+pygments==2.9.0           # via -r requirements_tests.in, sphinx
 pyparsing==2.4.6          # via matplotlib, packaging
 pytest==5.4.1             # via -r requirements_tests.in, pytest-cov
 pytest-cov==2.8.1         # via -r requirements_tests.in
@@ -42,7 +42,7 @@ sphinxcontrib-htmlhelp==1.0.3  # via sphinx
 sphinxcontrib-jsmath==1.0.1  # via sphinx
 sphinxcontrib-qthelp==1.0.3  # via sphinx
 sphinxcontrib-serializinghtml==1.1.4  # via sphinx
-urllib3==1.26.2           # via requests
+urllib3==1.26.4           # via -r requirements_tests.in, requests
 wcwidth==0.1.8            # via pytest
 zipp==3.1.0               # via importlib-metadata