[US-937] Update supported Go version

.github/workflows/build.yml

@@ -15,7 +15,7 @@ jobs:
         uses: actions/checkout@v2
       - name: Get golangci-lint
         run: |
-          curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s v1.61.0
+          curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s v1.64.6
       - name: Run golangci-lint
         run: |
           ./bin/golangci-lint run --out-format=github-actions --issues-exit-code=1
@@ -25,7 +25,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        go: ['1.22', '1.21', '1.20', '1.19', '1.18']
+        go: ['1.24', '1.23', '1.22', '1.21', '1.20']
     env:
       CGO_ENABLED: 0
     steps:

.golangci.yml

@@ -1,9 +1,7 @@
 linters:
   enable-all: false
   enable:
-    - exportloopref
     - staticcheck
-    - megacheck
     - govet
     - gosimple
     - nakedret
@@ -15,14 +13,10 @@ linters:
   disable:
     - ineffassign
     - errcheck
-    - varcheck
-    - deadcode
     - unused
-    - structcheck
     - lll
     - gofmt
     - goconst
-    - scopelint
 run:
   concurrency: 4
   timeout: 3m

README.md

@@ -37,7 +37,7 @@ powered by the [UniPDF](https://github.com/unidoc/unipdf) PDF library.
 
 ## Installation
 
-Minimum required Go version: 1.18. We officially support the 3 latest minor versions of Go, but it may work on earlier ones as well.
+Minimum required Go version: 1.20. We officially support the 5 latest minor versions of Go, but it may work on earlier ones as well.
 
 ```
 git clone git@github.com:unidoc/unipdf-cli.git

go.mod

@@ -1,5 +1,7 @@
 module github.com/unidoc/unipdf-cli
 
+go 1.20
+
 require (
 	github.com/spf13/cobra v1.9.1
 	github.com/unidoc/unipdf/v3 v3.67.0
@@ -22,13 +24,11 @@ require (
 	github.com/unidoc/timestamp v0.0.0-20200412005513-91597fd3793a // indirect
 	github.com/unidoc/unichart v0.3.0 // indirect
 	github.com/unidoc/unitype v0.5.1 // indirect
-	golang.org/x/crypto v0.32.0 // indirect
+	golang.org/x/crypto v0.33.0 // indirect
 	golang.org/x/image v0.24.0 // indirect
-	golang.org/x/net v0.34.0 // indirect
+	golang.org/x/net v0.35.0 // indirect
 	golang.org/x/sys v0.30.0 // indirect
 	golang.org/x/text v0.22.0 // indirect
 	golang.org/x/xerrors v0.0.0-20240903120638-7835f813f4da // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )
-
-go 1.18

go.sum

@@ -50,13 +50,13 @@ github.com/unidoc/unipdf/v3 v3.67.0 h1:t1ZkNX5iFhGLDPN/68MQOPAq4iXK4tTi7ePpSUBWk
 github.com/unidoc/unipdf/v3 v3.67.0/go.mod h1:S5BLo/oBIxAaQtB0Lw3wFqPFOY3U1oU+NISbjX9xEBA=
 github.com/unidoc/unitype v0.5.1 h1:UwTX15K6bktwKocWVvLoijIeu4JAVEAIeFqMOjvxqQs=
 github.com/unidoc/unitype v0.5.1/go.mod h1:3dxbRL+f1otNqFQIRHho8fxdg3CcUKrqS8w1SXTsqcI=
-golang.org/x/crypto v0.32.0 h1:euUpcYgM8WcP71gNpTqQCn6rC2t6ULUPiOzfWaXVVfc=
-golang.org/x/crypto v0.32.0/go.mod h1:ZnnJkOaASj8g0AjIduWNlq2NRxL0PlBrbKVyZ6V/Ugc=
+golang.org/x/crypto v0.33.0 h1:IOBPskki6Lysi0lo9qQvbxiQ+FvsCC/YWOecCHAixus=
+golang.org/x/crypto v0.33.0/go.mod h1:bVdXmD7IV/4GdElGPozy6U7lWdRXA4qyRVGJV57uQ5M=
 golang.org/x/image v0.0.0-20211028202545-6944b10bf410/go.mod h1:023OzeP/+EPmXeapQh35lcL3II3LrY8Ic+EFFKVhULM=
 golang.org/x/image v0.24.0 h1:AN7zRgVsbvmTfNyqIbbOraYL8mSwcKncEj8ofjgzcMQ=
 golang.org/x/image v0.24.0/go.mod h1:4b/ITuLfqYq1hqZcjofwctIhi7sZh2WaCjvsBNjjya8=
-golang.org/x/net v0.34.0 h1:Mb7Mrk043xzHgnRM88suvJFwzVrRfHEHJEl5/71CKw0=
-golang.org/x/net v0.34.0/go.mod h1:di0qlW3YNM5oh6GqDGQr92MyTozJPmybPK4Ev/Gm31k=
+golang.org/x/net v0.35.0 h1:T5GQRQb2y08kTAByq9L4/bz8cipCdA8FbRTXewonqY8=
+golang.org/x/net v0.35.0/go.mod h1:EglIi67kWsHKlRzzVMUD93VMSWGFOMSZgxFjparz1Qk=
 golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.30.0 h1:QjkSwP/36a20jFYWkSue1YwXzLmsV5Gfq7Eiy72C1uc=
 golang.org/x/sys v0.30.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=