Upgrade go 1.15 for smaller binary

Signed-off-by: Tam Mach <sayboras@yahoo.com>

Author: sayboras

.github/workflows/pr.yml

@@ -26,7 +26,7 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v2
         with:
-          go-version: 1.14 # test only the latest go version to speed up CI
+          go-version: 1.15 # test only the latest go version to speed up CI
       - name: Run tests
         run: make.exe test
         continue-on-error: true
@@ -38,7 +38,7 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v2
         with:
-          go-version: 1.14 # test only the latest go version to speed up CI
+          go-version: 1.15 # test only the latest go version to speed up CI
       - name: Run tests
         run: make test
         continue-on-error: true
@@ -48,8 +48,8 @@ jobs:
     strategy:
       matrix:
         golang:
-          - 1.13
           - 1.14
+          - 1.15
     steps:
       - uses: actions/checkout@v2
       - name: Install Go
@@ -77,6 +77,6 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v2
         with:
-          go-version: 1.14
+          go-version: 1.15
       - name: Check generated files are up to date
         run: make fast_check_generated

.github/workflows/tag.yml

@@ -14,7 +14,7 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v2
         with:
-          go-version: 1.14
+          go-version: 1.15
       - name: Unshallow
         run: git fetch --prune --unshallow
       - name: Login do docker.io