fatal error: concurrent map iteration and map write #2863

fatal error: concurrent map iteration and map write

goroutine 562 [running]:
reflect.mapiterinit(0x451652?, 0x1c0?, 0x1d96c40?)
	/opt/hostedtoolcache/go/1.20.6/x64/src/runtime/map.go:1375 +0x19
reflect.(*MapIter).Next(0x1c7fc60?)
	/opt/hostedtoolcache/go/1.20.6/x64/src/reflect/value.go:1919 +0x65
encoding/json.mapEncoder.encode({0xc00062d388?}, 0xc00048c280, {0x1c7fc60?, 0xc0004af678?, 0x800?}, {0xd?, 0x0?})
	/opt/hostedtoolcache/go/1.20.6/x64/src/encoding/json/encode.go:797 +0x33e
encoding/json.structEncoder.encode({{{0xc000b0fb00?, 0x79c025?, 0xc00062d490?}, 0xc0006d9ad0?}}, 0xc00048c280, {0x1e35ae0?, 0xc0004af678?, 0xd?}, {0x0, 0x1})
	/opt/hostedtoolcache/go/1.20.6/x64/src/encoding/json/encode.go:759 +0x1f4
encoding/json.structEncoder.encode({{{0xc0005d8c00?, 0x37?, 0xc00062d598?}, 0xc000683380?}}, 0xc00048c280, {0x1f460a0?, 0xc0004af608?, 0x7?}, {0x0, 0x1})
	/opt/hostedtoolcache/go/1.20.6/x64/src/encoding/json/encode.go:759 +0x1f4
encoding/json.structEncoder.encode({{{0xc000b0e480?, 0xc00062d690?, 0x40bbb6?}, 0xc000683bc0?}}, 0xc00048c280, {0x1e63b60?, 0xc0004af500?, 0x7a025a?}, {0x0, 0x1})
	/opt/hostedtoolcache/go/1.20.6/x64/src/encoding/json/encode.go:759 +0x1f4
encoding/json.ptrEncoder.encode({0x1?}, 0xc00048c280, {0x1f53e00?, 0xc0004af500?, 0x1f53e00?}, {0x8?, 0xd8?})
	/opt/hostedtoolcache/go/1.20.6/x64/src/encoding/json/encode.go:943 +0x21c
encoding/json.(*encodeState).reflectValue(0xc00048c280?, {0x1f53e00?, 0xc0004af500?, 0x40e1c7?}, {0x78?, 0x0?})
	/opt/hostedtoolcache/go/1.20.6/x64/src/encoding/json/encode.go:358 +0x78
encoding/json.(*encodeState).marshal(0xc00062d8f0?, {0x1f53e00?, 0xc0004af500?}, {0x20?, 0x60?})
	/opt/hostedtoolcache/go/1.20.6/x64/src/encoding/json/encode.go:330 +0xfa
encoding/json.Marshal({0x1f53e00, 0xc0004af500})
	/opt/hostedtoolcache/go/1.20.6/x64/src/encoding/json/encode.go:161 +0xe5
github.com/cloudnative-pg/cloudnative-pg/pkg/management/postgres/webserver.(*localWebserverEndpoints).serveCache(0x985a70?, {0x22618d0, 0xc000e4a000}, 0x50fb69?)
	pkg/management/postgres/webserver/local.go:96 +0x179
net/http.HandlerFunc.ServeHTTP(0xc00048c100?, {0x22618d0?, 0xc000e4a000?}, 0x40ddea?)
	/opt/hostedtoolcache/go/1.20.6/x64/src/net/http/server.go:2122 +0x2f
net/http.(*ServeMux).ServeHTTP(0x0?, {0x22618d0, 0xc000e4a000}, 0xc000e7a000)
	/opt/hostedtoolcache/go/1.20.6/x64/src/net/http/server.go:2500 +0x149
net/http.serverHandler.ServeHTTP({0xc0004224e0?}, {0x22618d0, 0xc000e4a000}, 0xc000e7a000)
	/opt/hostedtoolcache/go/1.20.6/x64/src/net/http/server.go:2936 +0x316
net/http.(*conn).serve(0xc00029e090, {0x2262830, 0xc0004b8180})
	/opt/hostedtoolcache/go/1.20.6/x64/src/net/http/server.go:1995 +0x612
created by net/http.(*Server).Serve
	/opt/hostedtoolcache/go/1.20.6/x64/src/net/http/server.go:3089 +0x5ed