Update of some requirements versions.

You can now in all requirements files replace the '>=' with '==',
it will install, and the tests will succeed.

(However, the `nikola-site` example will not build.)

requirements-extras.txt

@@ -1,16 +1,16 @@
 -r requirements.txt
-Jinja2>=2.7.2
+Jinja2>=3.1.0
 hsluv>=5.0.0
 pyphen>=0.9.1
 micawber>=0.3.0
-pygal>=2.0.0
+pygal>=2.0.11
 typogrify>=2.0.4
 phpserialize>=1.3
-notebook>=4.0.0
-ipykernel>=4.0.0
+notebook>=6.0.0
+ipykernel>=6.21.2
 ghp-import>=1.0.0
-aiohttp>=3.0.0
+aiohttp>=3.8.6
 watchdog>=0.8.3
-ruamel.yaml>=0.15
+ruamel.yaml>=0.15.98
 toml>=0.9.2
-html5lib>=1.0
+html5lib>=1.0.1

requirements-tests.txt

@@ -1,6 +1,6 @@
 -r requirements-extras.txt
 coverage>=4.5.1
-pytest>=4.1.0
+pytest>=4.3.0
 pytest-cov>=2.6.1
 feedparser>=6.0.10
 freezegun>=0.3.10

requirements.txt

@@ -1,16 +1,16 @@
-doit>=0.32.0
-Pygments>=1.6
-Pillow>=2.4.0
-python-dateutil>=2.6.0
-docutils>=0.13
-mako>=1.0.0
-Markdown>=3.0.0
-unidecode>=0.04.16
-lxml>=3.3.5
+doit>=0.33.1
+Pygments>=2.4.2
+Pillow>=9.1.0
+python-dateutil>=2.8.2
+docutils>=0.19
+mako>=1.0.9
+Markdown>=3.0
+unidecode>=0.4.16
+lxml>=4.5.2
 PyRSS2Gen>=1.1
 blinker>=1.3
-setuptools>=24.2.0
-natsort>=3.5.2
-requests>=2.2.0
+setuptools>=60.0.5
+natsort>=5.1.0
+requests>=2.31.0
 piexif>=1.0.3
-Babel>=2.6.0
+Babel>=2.12.0