build: Update lower bounds to tensorflow v2.7.0, jaxlib v0.1.61 (#1962)

* Update lower bound of the supported tensorflow versions to v2.7.0 to ensure
  numpy v1.20.0+ is available.
   - numpy.typing is needed for PR #1940 and was added in numpy v1.20.0.
   - tensorflow v2.6.5 restricts numpy to 'numpy~=1.19.2' and tensorflow v2.7.0
     relaxes numpy constraints to 'numpy>=1.14.5'.
* Update lower bound of the supported jaxlib versions to v0.1.61.
   - jaxlib v0.1.60 required 'numpy>=1.12,<1.20' and jaxlib v0.1.61 relaxes this
     to 'numpy>=1.16'.
* Update tests/constraints.txt to use tensorflow==2.7.0 and jaxlib==0.1.61.

setup.py

@@ -3,11 +3,11 @@
 extras_require = {
     'shellcomplete': ['click_completion'],
     'tensorflow': [
-        'tensorflow>=2.6.5',  # c.f. PR #1874
+        'tensorflow>=2.7.0',  # c.f. PR #1962
         'tensorflow-probability>=0.11.0',  # c.f. PR #1657
     ],
     'torch': ['torch>=1.10.0'],  # c.f. PR #1657
-    'jax': ['jax>=0.2.10', 'jaxlib>=0.1.60,!=0.1.68'],  # c.f. Issue 1501
+    'jax': ['jax>=0.2.10', 'jaxlib>=0.1.61,!=0.1.68'],  # c.f. PR #1962, Issue #1501
     'xmlio': ['uproot>=4.1.1'],  # c.f. PR #1567
     'minuit': ['iminuit>=2.7.0'],  # c.f. PR #1895
 }

tests/constraints.txt

@@ -12,7 +12,7 @@ uproot==4.1.1
 # minuit
 iminuit==2.7.0  # c.f. PR #1895
 # tensorflow
-tensorflow==2.6.5  # c.f. PR #1874
+tensorflow==2.7.0  # c.f. PR #1962
 tensorflow-probability==0.11.0  # c.f. PR #1657
 # torch
 torch==1.10.0
@@ -21,4 +21,4 @@ torch==1.10.0
 # c.f. https://github.com/google/jax/discussions/7608#discussioncomment-1269342
 --find-links https://storage.googleapis.com/jax-releases/jax_releases.html
 jax==0.2.10
-jaxlib==0.1.60  # jax v0.2.10 requires jaxlib>=0.1.60
+jaxlib==0.1.61  # c.f. PR #1962