Update minimum go version to 1.22 (#311)

The tooling seems to be unhappy with 1.20, e.g.
#302

Updating to latest-1, which also matches what Collector uses:
https://github.com/open-telemetry/opentelemetry-collector/blob/2d9d376ee26920d02fdb232e184dc3b1f064fc4b/go.mod#L11

.github/workflows/build-and-test.yml

@@ -15,7 +15,7 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@v5.1.0
         with:
-          go-version: "1.20"
+          go-version: "1.22"
       - name: Setup Go Environment
         run: |
           echo "GOPATH=$(go env GOPATH)" >> $GITHUB_ENV
@@ -48,7 +48,7 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@v5.1.0
         with:
-          go-version: "1.20"
+          go-version: "1.22"
       - name: Setup Go Environment
         run: |
           echo "GOPATH=$(go env GOPATH)" >> $GITHUB_ENV
@@ -76,7 +76,7 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@v5
         with:
-          go-version: "1.20"
+          go-version: "1.22"
       - name: Setup Go Environment
         run: |
           echo "GOPATH=$(go env GOPATH)" >> $GITHUB_ENV

.github/workflows/static-check.yml

@@ -19,7 +19,7 @@ jobs:
       - id: install_go
         uses: WillAbides/setup-go-faster@v1.14.0
         with:
-          go-version: "1.20.x"
+          go-version: "1.22.x"
       - uses: dominikh/staticcheck-action@v1.3.1
         with:
           install-go: false

go.mod

@@ -1,6 +1,6 @@
 module github.com/open-telemetry/opamp-go
 
-go 1.20
+go 1.22
 
 require (
 	github.com/cenkalti/backoff/v4 v4.3.0

internal/examples/go.mod

@@ -1,6 +1,6 @@
 module github.com/open-telemetry/opamp-go/internal/examples
 
-go 1.20
+go 1.22
 
 require (
 	github.com/cenkalti/backoff/v4 v4.3.0

internal/examples/go.sum

@@ -47,6 +47,7 @@ github.com/google/go-cmp v0.5.4/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/
 github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/go-cmp v0.5.6/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
+github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
 github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
 github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/gorilla/websocket v1.5.3 h1:saDtZ6Pbx/0u+bgYQ3q96pZgCzfhKXGPqt7kZ72aNNg=
@@ -82,7 +83,9 @@ github.com/joho/godotenv v1.3.0/go.mod h1:7hK45KPybAkOC6peb+G5yklZfMxEjkZhHbwpqx
 github.com/knadh/koanf v1.3.3 h1:eNtBOzQDzkzIIPRCJCx/Ha3DeD/ZFwCAp8JxyqoVAls=
 github.com/knadh/koanf v1.3.3/go.mod h1:1cfH5223ZeZUOs8FU2UdTmaNfHpqgtjV0+NHjRO43gs=
 github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
+github.com/kr/pretty v0.3.1/go.mod h1:hoEshYVHaxMs3cyo3Yncou5ZscifuDolrwPKZanG3xk=
 github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
+github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
 github.com/mattn/go-colorable v0.0.9/go.mod h1:9vuHe8Xs5qXnSaW/c/ABM9alt+Vo+STaOChaDxuIBZU=
 github.com/mattn/go-isatty v0.0.3/go.mod h1:M+lRXTBqGeGNdLjl/ufCoiOlB5xdOkqRJdNxMWT7Zi4=
 github.com/mitchellh/cli v1.0.0/go.mod h1:hNIlj7HEI86fIcpObd7a0FcrxTWetlwJDGcceTlRvqc=
@@ -113,6 +116,7 @@ github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZN
 github.com/posener/complete v1.1.1/go.mod h1:em0nMJCgc9GFtwrmVmEMR/ZL6WyhyjMBndrE9hABlRI=
 github.com/rhnvrm/simples3 v0.6.1/go.mod h1:Y+3vYm2V7Y4VijFoJHHTrja6OgPrJ2cBti8dPGkC3sA=
 github.com/rogpeppe/go-internal v1.11.0 h1:cWPaGQEPrBb5/AsnsZesgZZ9yb1OQ+GOISoDNXVBh4M=
+github.com/rogpeppe/go-internal v1.11.0/go.mod h1:ddIwULY96R17DhadqLgMfk9H9tvdUzkipdSkR5nkCZA=
 github.com/ryanuber/columnize v2.1.0+incompatible/go.mod h1:sm1tb6uqfes/u+d4ooFouqFdy9/2g9QGwK3SQygK0Ts=
 github.com/ryanuber/go-glob v1.0.0/go.mod h1:807d1WSdnB0XRJzKNil9Om6lcp/3a0v4qIHxIXzX/Yc=
 github.com/shirou/gopsutil v3.21.11+incompatible h1:+1+c1VGhc88SSonWP6foOcLhvnKlUeu/erjjvaPEYiI=
@@ -208,6 +212,7 @@ google.golang.org/protobuf v1.34.2/go.mod h1:qYOHts0dSfpeUzUFpOMr/WGzszTmLH+DiWn
 gopkg.in/asn1-ber.v1 v1.0.0-20181015200546-f715ec2f112d/go.mod h1:cuepJuh7vyXfUyUwEgHQXw849cJrilpS5NeIjOWESAw=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
+gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
 gopkg.in/square/go-jose.v2 v2.3.1/go.mod h1:M9dMgbHiYLoDGQrXy7OpJDJWiKiU//h+vD76mk0e1AI=
 gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=

internal/tools/go.mod

@@ -1,6 +1,6 @@
 module github.com/open-telemetry/opamp-go/internal/tools
 
-go 1.20
+go 1.22
 
 require github.com/ory/go-acc v0.2.8