CI/CD - Upgrade networkx version to fix installation compatibility issue (#478)

**Description**
Upgrade networkx version to fix installation compatibility issue.

.azure-pipelines/cpu-unit-test.yml

@@ -11,6 +11,8 @@ strategy:
       imageTag: '3.6'
     python-3.7:
       imageTag: '3.7'
+    python-3.8:
+      imageTag: '3.8'
     # TODO
     #python-latest:
     #  imageTag: '3'
@@ -27,6 +29,7 @@ steps:
       echo "##vso[task.prependpath]$HOME/.local/bin"
     displayName: Export path
   - script: |
+      python3 -m pip install --upgrade pip
       python3 -m pip install .[test,cpuworker]
       make postinstall
     displayName: Install dependencies

.azure-pipelines/cuda-unit-test.yml

@@ -18,6 +18,7 @@ steps:
       echo "##vso[task.prependpath]$HOME/.local/bin"
     displayName: Export path
   - script: |
+      python3 -m pip install --upgrade pip
       python3 -m pip install .[test,nvworker]
       make postinstall
     displayName: Install dependencies

setup.py

@@ -159,11 +159,11 @@ def run(self):
         'markdown>=3.3.0',
         'matplotlib>=3.0.0',
         'natsort>=7.1.1',
-        'networkx>=1.11',
+        'networkx>=2.5',
         'numpy>=1.19.2',
         'omegaconf==2.0.6',
         'openpyxl>=3.0.7',
-        'pandas==1.1.5',
+        'pandas>=1.1.5',
         'pssh @ git+https://github.com/lilydjwg/pssh.git@v2.3.4',
         'pyyaml>=5.3',
         'requests>=2.27.1',