Remove unnecessary duplicate sphinx installation (#1252)

* Remove unnecessary duplicate sphinx installation

This commit removes an unnecessary manual sphinx installation in the
tutorials CI job. This second install is causing a version to be
installed which is incompatible with already installed extensions. By
removing it this should hopefully enable pip's dependency solver to
resolve everything correctly and not cause incompatible versions from
being installed.

Fixes #1251

* Increase test job timeout to 60min

The unit test jobs have been slowly encroaching on the configured
timeout for some jobs over time and we're now at a point where test jobs
regularly are hitting the timeout and failing. To avoid failures like
this from happening, this commit bumps the timeout for all the unittest
jobs to 60min which should give us a healthy margin for test suite
growth and random slow CI nodes without making us wait the full 6 hour
job limit in gha.

.github/workflows/docs.yml

@@ -71,7 +71,7 @@ jobs:
           pip install -U -r requirements-dev.txt -c constraints.txt
           pip install -c constraints.txt git+https://github.com/Qiskit/qiskit-terra
           pip install -c constraints.txt .
-          pip install -U "qiskit-ibmq-provider" "z3-solver" "qiskit-ignis" "qiskit-aqua" "pyscf<1.7.4" "matplotlib<3.3.0" jupyter pylatexenc sphinx nbsphinx sphinx_rtd_theme cvxpy -c constraints.txt
+          pip install -U "qiskit-ibmq-provider" "z3-solver" "qiskit-ignis" "qiskit-aqua" "pyscf<1.7.4" "matplotlib<3.3.0" jupyter pylatexenc nbsphinx sphinx_rtd_theme cvxpy -c constraints.txt
           python setup.py build_ext --inplace
           sudo apt install -y graphviz pandoc libopenblas-dev
           pip check

.github/workflows/tests_linux.yml

@@ -83,7 +83,7 @@ jobs:
   tests:
     runs-on: ${{ matrix.os }}
     needs: [sdist, lint]
-    timeout-minutes: 30
+    timeout-minutes: 60
     strategy:
       matrix:
         python-version: [3.6, 3.7, 3.8, 3.9]
@@ -127,7 +127,7 @@ jobs:
   tests-json-input:
     runs-on: ${{ matrix.os }}
     needs: [sdist, lint]
-    timeout-minutes: 45
+    timeout-minutes: 60
     strategy:
       matrix:
         python-version: [3.9]

.github/workflows/tests_mac.yml

@@ -77,7 +77,7 @@ jobs:
   tests:
     runs-on: ${{ matrix.os }}
     needs: [sdist, lint]
-    timeout-minutes: 40
+    timeout-minutes: 60
     strategy:
       matrix:
         python-version: [3.6, 3.7, 3.8, 3.9]
@@ -130,7 +130,7 @@ jobs:
   tests-json-input:
     runs-on: ${{ matrix.os }}
     needs: [sdist, lint]
-    timeout-minutes: 45
+    timeout-minutes: 60
     strategy:
       matrix:
         python-version: [3.9]

.github/workflows/tests_windows.yml

@@ -83,7 +83,7 @@ jobs:
   tests:
     runs-on: ${{ matrix.os }}
     needs: ["lint"]
-    timeout-minutes: 30
+    timeout-minutes: 60
     strategy:
       matrix:
         python-version: [3.6, 3.7, 3.8, 3.9]
@@ -128,7 +128,7 @@ jobs:
   tests-json-input:
     runs-on: ${{ matrix.os }}
     needs: ["lint"]
-    timeout-minutes: 45
+    timeout-minutes: 60
     strategy:
       matrix:
         python-version: [3.9]