all: bump minimum Go to 1.17

In prep for using 1.17 features.

Note the go.mod changes are due to:
https://golang.org/doc/go1.17#go-command

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>

.github/workflows/cross-darwin.yml

@@ -19,7 +19,7 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@v1
       with:
-        go-version: 1.16
+        go-version: 1.17
       id: go
 
     - name: Check out code into the Go module directory

.github/workflows/cross-freebsd.yml

@@ -19,7 +19,7 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@v1
       with:
-        go-version: 1.16
+        go-version: 1.17
       id: go
 
     - name: Check out code into the Go module directory

.github/workflows/cross-openbsd.yml

@@ -19,7 +19,7 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@v1
       with:
-        go-version: 1.16
+        go-version: 1.17
       id: go
 
     - name: Check out code into the Go module directory

.github/workflows/cross-windows.yml

@@ -19,7 +19,7 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@v1
       with:
-        go-version: 1.16
+        go-version: 1.17
       id: go
 
     - name: Check out code into the Go module directory

.github/workflows/depaware.yml

@@ -16,7 +16,7 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@v1
       with:
-        go-version: 1.16
+        go-version: 1.17
 
     - name: Check out code
       uses: actions/checkout@v1

.github/workflows/go_generate.yml

@@ -17,7 +17,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v1
         with:
-          go-version: 1.16
+          go-version: 1.17
 
       - name: Check out code
         uses: actions/checkout@v2

.github/workflows/license.yml

@@ -16,7 +16,7 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@v1
       with:
-        go-version: 1.16
+        go-version: 1.17
 
     - name: Check out code
       uses: actions/checkout@v1

.github/workflows/linux-race.yml

@@ -19,7 +19,7 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@v1
       with:
-        go-version: 1.16
+        go-version: 1.17
       id: go
 
     - name: Check out code into the Go module directory

.github/workflows/linux.yml

@@ -19,7 +19,7 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@v1
       with:
-        go-version: 1.16
+        go-version: 1.17
       id: go
 
     - name: Check out code into the Go module directory

.github/workflows/linux32.yml

@@ -19,7 +19,7 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@v1
       with:
-        go-version: 1.16
+        go-version: 1.17
       id: go
 
     - name: Check out code into the Go module directory

.github/workflows/staticcheck.yml

@@ -16,7 +16,7 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@v1
       with:
-        go-version: 1.16
+        go-version: 1.17
 
     - name: Check out code
       uses: actions/checkout@v1

.github/workflows/windows-race.yml

@@ -19,7 +19,7 @@ jobs:
     - name: Install Go
       uses: actions/setup-go@v2
       with:
-        go-version: 1.16.x
+        go-version: 1.17.x
 
     - name: Checkout code
       uses: actions/checkout@v2

.github/workflows/windows.yml

@@ -19,7 +19,7 @@ jobs:
     - name: Install Go
       uses: actions/setup-go@v2
       with:
-        go-version: 1.16.x
+        go-version: 1.17.x
 
     - name: Checkout code
       uses: actions/checkout@v2