go versions: drop 1.18-1.23, add 1.24-1.25

Signed-off-by: Vincent Batts <[email protected]>

Author: vbatts

.github/workflows/go.yml

@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        go: ['1.18', '1.19', '1.20', '1.21']
+        go: ['1.24', '1.25']
     steps:
     - uses: actions/checkout@v3
 

.github/workflows/validation.yml

@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        go: ['1.21']
+        go: ['1.25']
     steps:
     - uses: actions/checkout@v3
 

go.mod

@@ -1,6 +1,6 @@
 module github.com/vbatts/go-mtree
 
-go 1.17
+go 1.21
 
 require (
 	github.com/davecgh/go-spew v1.1.1