🐍 Python 3.10.x support and drop Python 3.6 support (#1565)

* Update requirements

* Update CI for p3.10

* Update numpy requirement

* Drop 🐍p3.6 support

Numpy also dropped support for p3.6

* Bind cython v0.29.28

* Bind pyworld to v0.2.10

> 0.2.10 is not p3.10.x compatible

* Update Dockerfile

.github/workflows/aux_tests.yml

@@ -18,7 +18,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: [3.6, 3.7, 3.8, 3.9]
+        python-version: [3.7, 3.8, 3.9, "3.10"]
         experimental: [false]
     steps:
       - uses: actions/checkout@v2

.github/workflows/data_tests.yml

@@ -18,7 +18,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: [3.6, 3.7, 3.8, 3.9]
+        python-version: [3.7, 3.8, 3.9, "3.10"]
         experimental: [false]
     steps:
       - uses: actions/checkout@v2

.github/workflows/inference_tests.yml

@@ -18,7 +18,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: [3.6, 3.7, 3.8, 3.9]
+        python-version: [3.7, 3.8, 3.9, "3.10"]
         experimental: [false]
     steps:
       - uses: actions/checkout@v2

.github/workflows/pypi-release.yml

@@ -36,7 +36,7 @@ jobs:
     runs-on: ubuntu-20.04
     strategy:
       matrix:
-        python-version: ["3.6", "3.7", "3.8", "3.9"]
+        python-version: ["3.7", "3.8", "3.9", "3.10"]
     steps:
       - uses: actions/checkout@v2
       - uses: actions/setup-python@v2
@@ -62,10 +62,6 @@ jobs:
         with:
           name: "sdist"
           path: "dist/"
-      - uses: actions/download-artifact@v2
-        with:
-          name: "wheel-3.6"
-          path: "dist/"
       - uses: actions/download-artifact@v2
         with:
           name: "wheel-3.7"
@@ -78,6 +74,10 @@ jobs:
         with:
           name: "wheel-3.9"
           path: "dist/"
+      - uses: actions/download-artifact@v2
+        with:
+          name: "wheel-3.10"
+          path: "dist/"
       - run: |
           ls -lh dist/
       - name: Setup PyPI config

.github/workflows/text_tests.yml

@@ -18,7 +18,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: [3.6, 3.7, 3.8, 3.9]
+        python-version: [3.7, 3.8, 3.9, "3.10"]
         experimental: [false]
     steps:
       - uses: actions/checkout@v2

.github/workflows/tts_tests.yml

@@ -18,7 +18,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: [3.6, 3.7, 3.8, 3.9]
+        python-version: [3.7, 3.8, 3.9, "3.10"]
         experimental: [false]
     steps:
       - uses: actions/checkout@v2

.github/workflows/vocoder_tests.yml

@@ -18,7 +18,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: [3.6, 3.7, 3.8, 3.9]
+        python-version: [3.7, 3.8, 3.9, "3.10"]
         experimental: [false]
     steps:
       - uses: actions/checkout@v2

.github/workflows/zoo_tests.yml

@@ -18,7 +18,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: [3.6, 3.7, 3.8, 3.9]
+        python-version: [3.7, 3.8, 3.9, "3.10"]
         experimental: [false]
     steps:
       - uses: actions/checkout@v2