Update Go to 1.16.3

go1.16.3 (released 2021/04/01) includes fixes to the compiler, linker, runtime,
the go command, and the testing and time packages. See the Go 1.16.3 milestone
on our issue tracker for details:

https://github.com/golang/go/issues?q=milestone%3AGo1.16.3+label%3ACherryPickApproved

full diff: https://github.com/golang/go/compare/go1.16.2...go1.16.3

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

.github/workflows/ci.yml

@@ -20,7 +20,7 @@ jobs:
 
     strategy:
       matrix:
-        go-version: [1.16.2]
+        go-version: [1.16.3]
         os: [ubuntu-18.04, macos-10.15, windows-2019]
 
     steps:
@@ -73,7 +73,7 @@ jobs:
     steps:
       - uses: actions/setup-go@v2
         with:
-          go-version: '1.16.2'
+          go-version: '1.16.3'
 
       - uses: actions/checkout@v2
         with:
@@ -106,7 +106,7 @@ jobs:
     steps:
       - uses: actions/setup-go@v2
         with:
-          go-version: '1.16.2'
+          go-version: '1.16.3'
 
       - name: Set env
         shell: bash
@@ -152,7 +152,7 @@ jobs:
     steps:
       - uses: actions/setup-go@v2
         with:
-          go-version: '1.16.2'
+          go-version: '1.16.3'
       - name: Set env
         shell: bash
         run: |
@@ -221,7 +221,7 @@ jobs:
     steps:
       - uses: actions/setup-go@v2
         with:
-          go-version: '1.16.2'
+          go-version: '1.16.3'
 
       - name: Set env
         shell: bash
@@ -258,7 +258,7 @@ jobs:
     steps:
       - uses: actions/setup-go@v2
         with:
-          go-version: '1.16.2'
+          go-version: '1.16.3'
 
       - uses: actions/checkout@v2
         with:
@@ -339,7 +339,7 @@ jobs:
     steps:
       - uses: actions/setup-go@v2
         with:
-          go-version: '1.16.2'
+          go-version: '1.16.3'
 
       - uses: actions/checkout@v2
         with:
@@ -490,7 +490,7 @@ jobs:
     steps:
       - uses: actions/setup-go@v2
         with:
-          go-version: '1.16.2'
+          go-version: '1.16.3'
 
       - uses: actions/checkout@v2
         with:

.github/workflows/nightly.yml

@@ -18,7 +18,7 @@ jobs:
     steps:
       - uses: actions/setup-go@v2
         with:
-          go-version: '1.16.2'
+          go-version: '1.16.3'
 
       - uses: actions/checkout@v2
         with:
@@ -135,7 +135,7 @@ jobs:
     steps:
       - uses: actions/setup-go@v2
         with:
-          go-version: '1.16.2'
+          go-version: '1.16.3'
 
       - uses: actions/checkout@v2
         with:

.github/workflows/release.yml

@@ -62,7 +62,7 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v2
         with:
-          go-version: '1.16.2'
+          go-version: '1.16.3'
 
       - name: Set env
         shell: bash