chore: use go install instead of go get and replacing deprecated tools

.devcontainer/Dockerfile

@@ -25,32 +25,25 @@ RUN apt-get update \
     # Verify git, process tools, lsb-release (common in install instructions for CLIs) installed
     && apt-get -y install git iproute2 procps lsb-release \
     #
-    # Install gocode-gomod
-    && go get -x -d github.com/stamblerre/gocode 2>&1 \
-    && go build -o gocode-gomod github.com/stamblerre/gocode \
-    && mv gocode-gomod $GOPATH/bin/ \
-    #
     # Install Go tools
-    && go get -u -v \
-        github.com/mdempsky/gocode \
-        github.com/uudashr/gopkgs/cmd/gopkgs \
-        github.com/ramya-rao-a/go-outline \
-        github.com/acroca/go-symbols \
-        github.com/godoctor/godoctor \
-        golang.org/x/tools/cmd/gorename \
-        github.com/rogpeppe/godef \
-        github.com/zmb3/gogetdoc \
-        github.com/haya14busa/goplay/cmd/goplay \
-        github.com/sqs/goreturns \
-        github.com/josharian/impl \
-        github.com/davidrjenni/reftools/cmd/fillstruct \
-        github.com/fatih/gomodifytags \
-        github.com/cweill/gotests/... \
-        golang.org/x/tools/cmd/goimports \
-        golang.org/x/lint/golint \
-        github.com/alecthomas/gometalinter 2>&1 \
-        github.com/mgechev/revive \
-        github.com/derekparker/delve/cmd/dlv 2>&1 \
+    && go install github.com/uudashr/gopkgs/v2/cmd/gopkgs@latest \
+    && go install github.com/ramya-rao-a/go-outline@latest \
+    && go install github.com/acroca/go-symbols@latest \
+    && go install github.com/godoctor/godoctor@latest \
+    && go install golang.org/x/tools/cmd/gorename@latest \
+    && go install github.com/rogpeppe/godef@latest \
+    && go install github.com/zmb3/gogetdoc@latest \
+    && go install github.com/haya14busa/goplay/cmd/goplay@latest \
+    && go install github.com/sqs/goreturns@latest \
+    && go install github.com/josharian/impl@latest \
+    && go install github.com/davidrjenni/reftools/cmd/fillstruct@latest \
+    && go install github.com/fatih/gomodifytags@latest \
+    && go install github.com/cweill/gotests/...@latest \
+    && go install golang.org/x/tools/cmd/goimports@latest \
+    && go install golang.org/x/lint/golint@latest \
+    && go install github.com/golangci/golangci-lint/cmd/golangci-lint@latest \
+    && go install github.com/mgechev/revive@latest \
+    && go install github.com/go-delve/delve/cmd/dlv@latest \
     && go install honnef.co/go/tools/cmd/staticcheck@latest \
     && go install golang.org/x/tools/gopls@latest \
     # Protocol Buffer Compiler